{"id":2794,"date":"2026-06-12T16:24:15","date_gmt":"2026-06-12T14:24:15","guid":{"rendered":"https:\/\/www.efsfasteners.com\/products\/screws\/hammer-head-screws\/"},"modified":"2026-07-17T15:58:03","modified_gmt":"2026-07-17T13:58:03","slug":"hammer-head-screws","status":"publish","type":"page","link":"https:\/\/www.efsfasteners.com\/en\/products\/screws\/hammer-head-screws\/","title":{"rendered":"Hammer Head Screws"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--link_hover_color: var(--awb-color6);--link_color: var(--awb-color1);--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:20px;--awb-padding-bottom:20px;--awb-background-image:linear-gradient(180deg, var(--awb-color5) 0%,var(--awb-color3) 100%);--awb-flex-wrap:wrap;\" ><div class=\"awb-background-mask\" style=\"background-image:  url(https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/EFS_mask_1w.svg);opacity: 1 ;transform: scale(1, 1);mix-blend-mode:normal;\"><\/div><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-center fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_3_5 3_5 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:60%;--awb-margin-top-large:60px;--awb-spacing-right-large:3.2%;--awb-margin-bottom-large:60px;--awb-spacing-left-large:3.2%;--awb-width-medium:60%;--awb-order-medium:0;--awb-spacing-right-medium:3.2%;--awb-spacing-left-medium:3.2%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1 fusion-text-no-margin\" style=\"--awb-text-color:var(--awb-color1);--awb-margin-bottom:10px;\"><p><a href=\"https:\/\/www.efsfasteners.com\/en\/products\/\">PRODUCTS<\/a> | <a href=\"https:\/\/www.efsfasteners.com\/en\/products\/screws\/\">SCREWS<\/a><\/p>\n<\/div><div class=\"fusion-title title fusion-title-1 fusion-sep-none fusion-title-text fusion-title-size-one\" style=\"--awb-text-color:var(--awb-color1);--awb-font-size:40px;\"><h1 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;font-size:1em;--fontSize:40;line-height:1.5;\">Hammer Head Screws<\/h1><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_2_5 2_5 fusion-flex-column fusion-flex-align-self-stretch\" style=\"--awb-bg-position:center center;--awb-bg-size:cover;--awb-width-large:40%;--awb-margin-top-large:0px;--awb-spacing-right-large:4.8%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:4.8%;--awb-width-medium:40%;--awb-order-medium:0;--awb-spacing-right-medium:4.8%;--awb-spacing-left-medium:4.8%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-image-element \" style=\"text-align:center;--awb-mask-url: url(https:\/\/www.efsfasteners.com\/wp-content\/plugins\/fusion-builder\/\/assets\/images\/masks\/mask-3.svg);--awb-caption-title-font-family:var(--h2_typography-font-family);--awb-caption-title-font-weight:var(--h2_typography-font-weight);--awb-caption-title-font-style:var(--h2_typography-font-style);--awb-caption-title-size:var(--h2_typography-font-size);--awb-caption-title-transform:var(--h2_typography-text-transform);--awb-caption-title-line-height:var(--h2_typography-line-height);--awb-caption-title-letter-spacing:var(--h2_typography-letter-spacing);\"><span class=\" fusion-imageframe imageframe-none imageframe-1 hover-type-none has-mask\"><img decoding=\"async\" width=\"800\" height=\"800\" alt=\"EFS - Prodotti - Vite a martello per assemblaggio industriale\" title=\"EFS &#8211; Prodotti &#8211; Viti a martello\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/EFS_viti_6.jpg\" class=\"img-responsive wp-image-1072\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/EFS_viti_6-200x200.jpg 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/EFS_viti_6-400x400.jpg 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/EFS_viti_6-600x600.jpg 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/EFS_viti_6.jpg 800w\" sizes=\"(max-width: 640px) 100vw, 600px\" \/><\/span><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-section-separator section-separator triangle fusion-section-separator-1\" style=\"--awb-border-bottom:1px solid var(--awb-color3);--awb-spacer-height:1px;--awb-svg-margin-left:1.92%;--awb-svg-margin-right:1.92%;--awb-svg-margin-left-medium:1.92%;--awb-svg-margin-right-medium:1.92%;--awb-svg-margin-left-small:1.92%;--awb-svg-margin-right-small:1.92%;--awb-icon-color:var(--awb-color1);\"><div class=\"fusion-section-separator-svg\"><div class=\"divider-candy-arrow bottom\" style=\"top:0px;border-top-color: var(--awb-color3);\"><\/div><div class=\"divider-candy bottom\" style=\"bottom:-21px;border-bottom:1px solid var(--awb-color3);border-left:1px solid var(--awb-color3);\"><\/div><\/div><div class=\"fusion-section-separator-spacer\"><div class=\"fusion-section-separator-spacer-height\"><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-3 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:60px;--awb-padding-bottom:60px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-2\"><p>Hammer head screws are fastening components designed for insertion into slots, guides and industrial profiles. The specific geometry of the head allows mechanical locking inside the seat without the need to hold the screw during tightening, making them particularly suitable for applications with limited space and restricted accessibility.<\/p>\n<p>This type of fastener is used in machine tools, industrial plants, modular structures, handling systems and mechanical equipment where secure, adjustable and easily inspectable connections are required.<\/p>\n<p>In addition to standard versions according to DIN 186, DIN 188 and DIN 261, the industrial market frequently uses made-to-drawing hammer head screws, developed to fit slots, profiles or components with specific geometries.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"awb-gallery-wrapper awb-gallery-wrapper-1 button-span-no\" style=\"--more-btn-alignment:center;\"><div style=\"margin:-5px;--awb-bordersize:0px;\" class=\"fusion-gallery fusion-gallery-container fusion-grid-2 fusion-columns-total-2 fusion-gallery-layout-grid fusion-gallery-1\"><div style=\"padding:5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-2 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-martello-prodotti.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-martello-prodotti.jpg\" width=\"800\" height=\"600\" alt=\"\" title=\"efs-vite-testa-martello-prodotti\" aria-label=\"efs-vite-testa-martello-prodotti\" class=\"img-responsive wp-image-2629\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-martello-prodotti-200x150.jpg 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-martello-prodotti-400x300.jpg 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-martello-prodotti-600x450.jpg 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-martello-prodotti.jpg 800w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 712px) 598px, (min-width: 640px) 712px, \" \/><\/a><\/div><\/div><div style=\"padding:5px;\" class=\"fusion-grid-column fusion-gallery-column fusion-gallery-column-2 hover-type-none\"><div class=\"fusion-gallery-image\"><a href=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-rettangolare-parallelogramma.jpg\" rel=\"noreferrer\" data-rel=\"iLightbox[gallery_image_1]\" class=\"fusion-lightbox\" target=\"_self\"><img decoding=\"async\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-rettangolare-parallelogramma.jpg\" width=\"800\" height=\"600\" alt=\"Da EFS: vite a testa rettangolare inclinata a parallelogramma\" title=\"efs-vite-testa-rettangolare-parallelogramma\" aria-label=\"efs-vite-testa-rettangolare-parallelogramma\" class=\"img-responsive wp-image-2632\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-rettangolare-parallelogramma-200x150.jpg 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-rettangolare-parallelogramma-400x300.jpg 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-rettangolare-parallelogramma-600x450.jpg 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/06\/efs-vite-testa-rettangolare-parallelogramma.jpg 800w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 712px) 598px, (min-width: 640px) 712px, \" \/><\/a><\/div><\/div><div class=\"clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-5 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-2 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-text-color:var(--awb-color4);\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:26;line-height:1.5;\">Characteristics of Hammer Head Screws<\/h2><\/div><div class=\"fusion-text fusion-text-3\"><p>The main function of hammer head screws is to ensure stable fastening inside a slot or guide without requiring access to the rear side of the connection.<\/p>\n<p>The head is inserted into the slot and rotated into the working position, creating a coupling that prevents rotation during tightening.<\/p>\n<p>Compared to traditional fasteners, this configuration offers several advantages:<\/p>\n<ul>\n<li>quick assembly<\/li>\n<li>reduced space requirements<\/li>\n<li>possibility of adjustment along the guide<\/li>\n<li>no need for additional machining on the structure<\/li>\n<li>high reliability even in the presence of vibration<\/li>\n<\/ul>\n<p>Hammer head screws can be manufactured with metric or imperial threads, special lengths and customized geometries according to the final application.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-3 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color5);\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;--minFontSize:22;line-height:1.5;\">DIN 186, DIN 188 and DIN 261 Hammer Head Screws<\/h3><\/div><div class=\"fusion-text fusion-text-4\"><p>The main reference standards for this product family are:<\/p>\n<\/div><div class=\"fusion-title title fusion-title-4 fusion-sep-none fusion-title-text fusion-title-size-four\" style=\"--awb-text-color:var(--awb-color4);\"><h4 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:18;--minFontSize:18;line-height:1.5;\">DIN 186 \u2013 Hammer Head Screws with Square Neck<\/h4><\/div><div class=\"fusion-text fusion-text-5\"><p>DIN 186 identifies screws characterized by a square neck under the head, which provides an anti-rotation function during tightening.<br \/>\nThis configuration is particularly valued in metal structures and industrial fastening systems where correct positioning of the screw inside the slot must be ensured.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-5 fusion-sep-none fusion-title-text fusion-title-size-four\" style=\"--awb-text-color:var(--awb-color4);\"><h4 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:18;--minFontSize:18;line-height:1.5;\">DIN 188 \u2013 Hammer Head Screws with Double Projection<\/h4><\/div><div class=\"fusion-text fusion-text-6\"><p>DIN 188 screws feature a specific geometry with double projection, which facilitates correct positioning in the seat and improves coupling stability.<br \/>\nThey are used in many industrial applications where the fastener must maintain the correct orientation during assembly and maintenance operations.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-6 fusion-sep-none fusion-title-text fusion-title-size-four\" style=\"--awb-text-color:var(--awb-color4);\"><h4 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:18;--minFontSize:18;line-height:1.5;\">DIN 261 \u2013 Hammer Head Screws<\/h4><\/div><div class=\"fusion-text fusion-text-7\"><p>DIN 261 defines a hammer head screw configuration widely used in guides, profiles and industrial fastening systems.<br \/>\nThanks to the shape of the head, these components make it possible to create compact and easily adjustable connections without requiring complex machining on the structure.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-7 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color5);\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;--minFontSize:22;line-height:1.5;\">Bolts for T-Slots and T-Channels<\/h3><\/div><div class=\"fusion-text fusion-text-8\"><p>In the same application field, bolts designed for T-slots and T-channels are also used, particularly in machine tools and clamping systems.<\/p>\n<p>The main references are:<\/p>\n<ul>\n<li>DIN 787 \u2013 T-slot bolts<\/li>\n<li>ISO 299 \u2013 T-slot bolts for machine tools<\/li>\n<\/ul>\n<p>These components are designed to work inside standardized slots found on machine tables, machining centres, clamping equipment and positioning systems.<\/p>\n<p>The possibility of adjusting the fastening point along the slot makes this solution extremely versatile in machining operations and tooling activities.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-8 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color5);\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;--minFontSize:22;line-height:1.5;\">Rectangular Head Screws and Special Solutions<\/h3><\/div><div class=\"fusion-text fusion-text-9\"><p><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/rectangular-head-screws-for-industrial-plants-a-compact-and-effective-solution\/\">Rectangular head screws<\/a> are often associated with hammer head screws due to their similar geometry and operating principle, based on the anti-rotation function of the head inside the seat.<\/p>\n<p>However, they are a distinct category that, in industrial applications, is frequently manufactured to drawing according to the dimensions of the slot, operating loads and construction constraints of the machinery.<\/p>\n<p>These solutions are used in:<\/p>\n<ul>\n<li>industrial plants<\/li>\n<li>handling systems<\/li>\n<li>special machinery<\/li>\n<li>mechanical steel construction<\/li>\n<li>OEM modular structures<\/li>\n<\/ul>\n<p>Made-to-drawing production allows complete customization of head width, thickness, shank length, thread and material.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-4 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:80px;--awb-padding-bottom:80px;--awb-background-image:linear-gradient(180deg, var(--awb-color4) 0%,var(--awb-color5) 100%);--awb-flex-wrap:wrap;\" ><div class=\"awb-background-mask\" style=\"background-image:  url(https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/EFS_mask_1w.svg);opacity: 0.5 ;transform: scale(-1, 1);mix-blend-mode:normal;\"><\/div><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-center fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-6 fusion_builder_column_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:2.88%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:2.88%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-margin-bottom-medium:20px;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-9 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color1);--awb-margin-bottom:20px;--awb-margin-bottom-small:0px;--awb-font-size:40px;\"><h3 class=\"fusion-title-heading title-heading-left md-text-align-center sm-text-align-center fusion-responsive-typography-calculated\" style=\"margin:0;font-size:1em;--fontSize:40;line-height:1.5;\">NEED A PARTNER FOR SPECIAL BOLTS?<\/h3><\/div><div class=\"fusion-text fusion-text-10\" style=\"--awb-text-color:var(--awb-color1);\"><p data-start=\"2917\" data-end=\"3084\">We supply custom-designed fasteners for critical applications \u2014 with certified quality, full traceability, and technical support.<br data-start=\"517\" data-end=\"520\" \/>Fill out the contact form or call us: our team is ready to assist you with tailored solutions.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-7 fusion_builder_column_1_3 1_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:33.333333333333%;--awb-margin-top-large:0px;--awb-spacing-right-large:5.76%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:5.76%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"md-text-align-center sm-text-align-center\"><a class=\"fusion-button button-flat button-xlarge button-custom fusion-button-default button-1 fusion-button-default-span fusion-button-default-type\" style=\"--button_accent_color:var(--awb-color1);--button_accent_hover_color:var(--awb-color1);--button_border_hover_color:var(--awb-color6);--button_border_width-top:4px;--button_border_width-right:4px;--button_border_width-bottom:4px;--button_border_width-left:4px;--button_gradient_top_color:rgba(127,135,144,0);--button_gradient_bottom_color:rgba(127,135,144,0);--button_gradient_top_color_hover:var(--awb-color6);--button_gradient_bottom_color_hover:var(--awb-color6);\" target=\"_self\" href=\"https:\/\/www.efsfasteners.com\/en\/contacts\/\"><span class=\"fusion-button-text\">CONTACT US<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\n<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-5 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:60px;--awb-padding-bottom:60px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-8 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-10 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-text-color:var(--awb-color4);\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:26;line-height:1.5;\">Industrial Applications of Hammer Head Screws<\/h2><\/div><div class=\"fusion-text fusion-text-11\"><p>Hammer head screws are used in many industrial sectors where adjustable and compact connections are required.<\/p>\n<p>The most common applications include:<\/p>\n<ul>\n<li>machine tools<\/li>\n<li>automation systems<\/li>\n<li>production lines<\/li>\n<li>transport and handling systems<\/li>\n<li>industrial steel construction<\/li>\n<li>modular structures<\/li>\n<li>railway sector<\/li>\n<li>energy plants<\/li>\n<li>machinery for cement plants<\/li>\n<\/ul>\n<p>The ability to quickly adjust the position of the fastener is one of the main advantages compared to traditional solutions.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-9 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-11 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color4);\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;--minFontSize:22;line-height:1.5;\">Available Materials<\/h3><\/div><div class=\"fusion-text fusion-text-12\"><p>Hammer head screws can be manufactured in a wide range of materials, depending on operating and environmental conditions.<\/p>\n<p>The most commonly used include:<\/p>\n<ul>\n<li>carbon steel in property classes 8.8, 10.9 and 12.9<\/li>\n<li>42CrMo4<\/li>\n<li>39NiCrMo3<\/li>\n<li>AISI 304 stainless steel<\/li>\n<li>AISI 316 stainless steel<\/li>\n<li>Duplex<\/li>\n<li>Super Duplex<\/li>\n<li>ASTM A193 B7<\/li>\n<li>ASTM A193 B16<\/li>\n<li>Inconel<\/li>\n<li>Hastelloy<\/li>\n<\/ul>\n<p>For critical applications, EN 10204 3.1 and 3.2 certificates are available, with full raw material traceability.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-10 fusion_builder_column_1_2 1_2 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:50%;--awb-margin-top-large:0px;--awb-spacing-right-large:3.84%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:3.84%;--awb-width-medium:50%;--awb-order-medium:0;--awb-spacing-right-medium:3.84%;--awb-spacing-left-medium:3.84%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-12 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color4);\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;--minFontSize:22;line-height:1.5;\">Surface Treatments<\/h3><\/div><div class=\"fusion-text fusion-text-13\"><p>The choice of surface treatment depends on the operating environment and the required performance.<\/p>\n<p>The main solutions available include:<\/p>\n<ul>\n<li>electrolytic zinc plating<\/li>\n<li>hot-dip galvanizing<\/li>\n<li>Geomet\u00ae<\/li>\n<li>zinc-nickel coating<\/li>\n<li>phosphating<\/li>\n<li>black oxide treatment<\/li>\n<li>electroless nickel plating<\/li>\n<li>Xylan\u00ae<\/li>\n<li>passivation for stainless steels<\/li>\n<li>pre-applied threadlocker<\/li>\n<\/ul>\n<p>Treatments can be selected to improve corrosion resistance, tightening behaviour and fastening durability.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-11 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-13 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-text-color:var(--awb-color4);\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:26;line-height:1.5;\">EFS Capabilities<\/h2><\/div><div class=\"fusion-text fusion-text-14\"><p>EFS supports the supply of standard and special hammer head screws for highly critical industrial applications.<\/p>\n<p>Supplies may include:<\/p>\n<ul>\n<li>made-to-drawing production<\/li>\n<li>non-standard diameters and lengths<\/li>\n<li>dedicated machining operations<\/li>\n<li>special threads<\/li>\n<li>heat treatments<\/li>\n<li>surface treatments<\/li>\n<li>laser marking<\/li>\n<li>EN 10204 3.1 and 3.2 certifications<\/li>\n<li>dimensional inspections<\/li>\n<li>destructive and non-destructive testing<\/li>\n<li>full material traceability<\/li>\n<\/ul>\n<p>The selection of qualified Italian and European manufacturers makes it possible to manage both small batches and serial supplies for OEMs and industrial maintenance.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-12 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-14 fusion-sep-none fusion-title-text fusion-title-size-two\" style=\"--awb-text-color:var(--awb-color4);\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:26;line-height:1.5;\">FAQ<\/h2><\/div><div class=\"fusion-title title fusion-title-15 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color5);\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;--minFontSize:22;line-height:1.5;\">What Is the Difference Between DIN 186 and DIN 261?<\/h3><\/div><div class=\"fusion-text fusion-text-15\"><p>DIN 186 includes a square neck under the head, which provides an anti-rotation function. DIN 261, on the other hand, identifies a hammer head screw without this geometric feature.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-16 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color5);\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;--minFontSize:22;line-height:1.5;\">When Should a Hammer Head Screw Be Used?<\/h3><\/div><div class=\"fusion-text fusion-text-16\"><p>Hammer head screws are used when the fastener must be inserted inside a slot or guide and must be adjustable without access to the rear side of the connection.<\/p>\n<\/div><div class=\"fusion-title title fusion-title-17 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color5);\"><h3 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;--minFontSize:22;line-height:1.5;\">Is It Possible to Manufacture Made-to-Drawing Hammer Head Screws?<\/h3><\/div><div class=\"fusion-text fusion-text-17\"><p>Yes. Many industrial applications require customized dimensions, materials, threads or geometries, which are produced according to the customer\u2019s technical specifications.<\/p>\n<\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-6 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:80px;--awb-padding-bottom:80px;--awb-background-image:linear-gradient(180deg, var(--awb-color4) 0%,var(--awb-color5) 100%);--awb-flex-wrap:wrap;\" ><div class=\"awb-background-mask\" style=\"background-image:  url(https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/EFS_mask_1w.svg);opacity: 0.5 ;transform: scale(-1, 1);mix-blend-mode:normal;\"><\/div><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-center fusion-flex-justify-content-center fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-13 fusion_builder_column_2_3 2_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:66.666666666667%;--awb-margin-top-large:0px;--awb-spacing-right-large:2.88%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:2.88%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-margin-bottom-medium:20px;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-18 fusion-sep-none fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color1);--awb-margin-bottom:20px;--awb-margin-bottom-small:0px;--awb-font-size:40px;\"><h3 class=\"fusion-title-heading title-heading-left md-text-align-center sm-text-align-center fusion-responsive-typography-calculated\" style=\"margin:0;font-size:1em;--fontSize:40;line-height:1.5;\">NEED A PARTNER FOR SPECIAL BOLTS?<\/h3><\/div><div class=\"fusion-text fusion-text-18\" style=\"--awb-text-color:var(--awb-color1);\"><p data-start=\"2917\" data-end=\"3084\">We supply custom-designed fasteners for critical applications \u2014 with certified quality, full traceability, and technical support.<br data-start=\"517\" data-end=\"520\" \/>Fill out the contact form or call us: our team is ready to assist you with tailored solutions.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-14 fusion_builder_column_1_3 1_3 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:33.333333333333%;--awb-margin-top-large:0px;--awb-spacing-right-large:5.76%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:5.76%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\" data-scroll-devices=\"small-visibility,medium-visibility,large-visibility\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"md-text-align-center sm-text-align-center\"><a class=\"fusion-button button-flat button-xlarge button-custom fusion-button-default button-2 fusion-button-default-span fusion-button-default-type\" style=\"--button_accent_color:var(--awb-color1);--button_accent_hover_color:var(--awb-color1);--button_border_hover_color:var(--awb-color6);--button_border_width-top:4px;--button_border_width-right:4px;--button_border_width-bottom:4px;--button_border_width-left:4px;--button_gradient_top_color:rgba(127,135,144,0);--button_gradient_bottom_color:rgba(127,135,144,0);--button_gradient_top_color_hover:var(--awb-color6);--button_gradient_bottom_color_hover:var(--awb-color6);\" target=\"_self\" href=\"https:\/\/www.efsfasteners.com\/en\/contacts\/\"><span class=\"fusion-button-text\">CONTACT US<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\n<div id=\"headerpaginaprove\" class=\"fusion-container-anchor\"><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-7 fusion-flex-container has-pattern-background has-mask-background nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-padding-top:60px;--awb-padding-bottom:60px;--awb-background-color:var(--awb-color2);--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1248px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-15 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-title title fusion-title-19 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-three\" style=\"--awb-text-color:var(--awb-color4);\"><h3 class=\"fusion-title-heading title-heading-center fusion-responsive-typography-calculated\" style=\"margin:0;text-transform:uppercase;--fontSize:22;--minFontSize:22;line-height:1.5;\">PRODUCTS APPLIED TO INDUSTRY<\/h3><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-16 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-recent-works fusion-portfolio-element fusion-portfolio fusion-portfolio-1 fusion-portfolio-carousel fusion-portfolio-paging-pagination recent-works-carousel portfolio-carousel picture-size-auto fusion-portfolio-rollover\" data-id=\"-rw-1\"><div class=\"awb-carousel awb-swiper awb-swiper-carousel fusion-carousel-title-below-image\" style=\"--awb-columns:4;\" data-metacontent=\"yes\" data-autoplay=\"no\" data-columns=\"4\" data-itemmargin=\"10\" data-itemwidth=\"180\" data-touchscroll=\"no\" data-imagesize=\"auto\" data-scrollitems=\"1\"><div class=\"swiper-wrapper\"><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><span class=\"entry-title rich-snippet-hidden\">Special Screws for Lamellar Joints<\/span><span class=\"vcard rich-snippet-hidden\"><span class=\"fn\"><a href=\"https:\/\/www.efsfasteners.com\/en\/author\/eufastersol-admin\/\" rel=\"author\">Eufastersol Admin<\/a><\/span><\/span><div  class=\"fusion-image-wrapper\" aria-haspopup=\"true\">\n\t\t\t\t<img decoding=\"async\" width=\"1422\" height=\"800\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/20250220_1.png\" class=\"attachment-full size-full wp-post-image\" alt=\"EFS - Prodotti - Viti speciali per giunti lamellari 42CrMo4\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/20250220_1-200x113.png 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/20250220_1-400x225.png 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/20250220_1-600x338.png 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/20250220_1-800x450.png 800w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/20250220_1-1200x675.png 1200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/03\/20250220_1.png 1422w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 856px) 293px, (min-width: 784px) 390px, (min-width: 712px) 585px, (min-width: 640px) 712px, \" \/><div class=\"fusion-rollover\">\n\t<div class=\"fusion-rollover-content\">\n\n\t\t\t\t\n\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<div class=\"fusion-rollover-categories\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/mechanics\/\" rel=\"tag\">MECHANICS<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<a class=\"fusion-link-wrapper\" href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/special-screws-for-lamellar-joints\/\" aria-label=\"Special Screws for Lamellar Joints\"><\/a>\n\t<\/div>\n<\/div>\n<\/div>\n<h4 class=\"fusion-carousel-title\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/special-screws-for-lamellar-joints\/\" target=\"_self\">Special Screws for Lamellar Joints<\/a><\/h4><div class=\"fusion-carousel-meta\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/mechanics\/\" rel=\"tag\">MECHANICS<\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><span class=\"entry-title rich-snippet-hidden\">Custom Threaded Studs for Nuclear Plants<\/span><span class=\"vcard rich-snippet-hidden\"><span class=\"fn\"><a href=\"https:\/\/www.efsfasteners.com\/en\/author\/eufastersol-admin\/\" rel=\"author\">Eufastersol Admin<\/a><\/span><\/span><div  class=\"fusion-image-wrapper\" aria-haspopup=\"true\">\n\t\t\t\t<img decoding=\"async\" width=\"1422\" height=\"800\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250206_1.png\" class=\"attachment-full size-full wp-post-image\" alt=\"EFS - Prodotti - Prigionieri speciali per impianti nucleari 21CrMoV5-7, 24CrMo5\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250206_1-200x113.png 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250206_1-400x225.png 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250206_1-600x338.png 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250206_1-800x450.png 800w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250206_1-1200x675.png 1200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250206_1.png 1422w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 856px) 293px, (min-width: 784px) 390px, (min-width: 712px) 585px, (min-width: 640px) 712px, \" \/><div class=\"fusion-rollover\">\n\t<div class=\"fusion-rollover-content\">\n\n\t\t\t\t\n\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<div class=\"fusion-rollover-categories\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/energy\/\" rel=\"tag\">ENERGY<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<a class=\"fusion-link-wrapper\" href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/special-prisoners-for-nuclear-plants\/\" aria-label=\"Custom Threaded Studs for Nuclear Plants\"><\/a>\n\t<\/div>\n<\/div>\n<\/div>\n<h4 class=\"fusion-carousel-title\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/special-prisoners-for-nuclear-plants\/\" target=\"_self\">Custom Threaded Studs for Nuclear Plants<\/a><\/h4><div class=\"fusion-carousel-meta\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/energy\/\" rel=\"tag\">ENERGY<\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><span class=\"entry-title rich-snippet-hidden\">Hexagonal Nut for Oil&amp;Gas Industry<\/span><span class=\"vcard rich-snippet-hidden\"><span class=\"fn\"><a href=\"https:\/\/www.efsfasteners.com\/en\/author\/eufastersol-admin\/\" rel=\"author\">Eufastersol Admin<\/a><\/span><\/span><div  class=\"fusion-image-wrapper\" aria-haspopup=\"true\">\n\t\t\t\t<img decoding=\"async\" width=\"1422\" height=\"800\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250121_1.png\" class=\"attachment-full size-full wp-post-image\" alt=\"EFS - Prodotti - Dado esagonale per il settore Oil&amp;Gas\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250121_1-200x113.png 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250121_1-400x225.png 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250121_1-600x338.png 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250121_1-800x450.png 800w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250121_1-1200x675.png 1200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250121_1.png 1422w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 856px) 293px, (min-width: 784px) 390px, (min-width: 712px) 585px, (min-width: 640px) 712px, \" \/><div class=\"fusion-rollover\">\n\t<div class=\"fusion-rollover-content\">\n\n\t\t\t\t\n\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<div class=\"fusion-rollover-categories\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/oil-gas\/\" rel=\"tag\">OIL &amp; GAS<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<a class=\"fusion-link-wrapper\" href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/hexagonal-nut-for-oilgas-industry\/\" aria-label=\"Hexagonal Nut for Oil&amp;Gas Industry\"><\/a>\n\t<\/div>\n<\/div>\n<\/div>\n<h4 class=\"fusion-carousel-title\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/hexagonal-nut-for-oilgas-industry\/\" target=\"_self\">Hexagonal Nut for Oil&amp;Gas Industry<\/a><\/h4><div class=\"fusion-carousel-meta\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/oil-gas\/\" rel=\"tag\">OIL &amp; GAS<\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><span class=\"entry-title rich-snippet-hidden\">Specialty Hardware for the Port Crane Industry<\/span><span class=\"vcard rich-snippet-hidden\"><span class=\"fn\"><a href=\"https:\/\/www.efsfasteners.com\/en\/author\/eufastersol-admin\/\" rel=\"author\">Eufastersol Admin<\/a><\/span><\/span><div  class=\"fusion-image-wrapper\" aria-haspopup=\"true\">\n\t\t\t\t<img decoding=\"async\" width=\"1422\" height=\"800\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250115_1.png\" class=\"attachment-full size-full wp-post-image\" alt=\"EFS - Prodotti - Bulloneria speciale per il settore delle gru portuali\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250115_1-200x113.png 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250115_1-400x225.png 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250115_1-600x338.png 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250115_1-800x450.png 800w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250115_1-1200x675.png 1200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/04\/20250115_1.png 1422w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 856px) 293px, (min-width: 784px) 390px, (min-width: 712px) 585px, (min-width: 640px) 712px, \" \/><div class=\"fusion-rollover\">\n\t<div class=\"fusion-rollover-content\">\n\n\t\t\t\t\n\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<div class=\"fusion-rollover-categories\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/construction-sites-and-lifting\/\" rel=\"tag\">CONSTRUCTION SITES AND LIFTING<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<a class=\"fusion-link-wrapper\" href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/specialty-hardware-for-the-port-crane-industry\/\" aria-label=\"Specialty Hardware for the Port Crane Industry\"><\/a>\n\t<\/div>\n<\/div>\n<\/div>\n<h4 class=\"fusion-carousel-title\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/specialty-hardware-for-the-port-crane-industry\/\" target=\"_self\">Specialty Hardware for the Port Crane Industry<\/a><\/h4><div class=\"fusion-carousel-meta\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/construction-sites-and-lifting\/\" rel=\"tag\">CONSTRUCTION SITES AND LIFTING<\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><span class=\"entry-title rich-snippet-hidden\">Rectangular head screws for industrial plants: a compact and effective solution<\/span><span class=\"vcard rich-snippet-hidden\"><span class=\"fn\"><a href=\"https:\/\/www.efsfasteners.com\/en\/author\/eufastersol-admin\/\" rel=\"author\">Eufastersol Admin<\/a><\/span><\/span><div  class=\"fusion-image-wrapper\" aria-haspopup=\"true\">\n\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250508_viti-testa-rettangolare_4.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"EFS - Prodotti - Viti a testa rettangolare per impianti industriali\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250508_viti-testa-rettangolare_4-200x150.jpg 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250508_viti-testa-rettangolare_4-400x300.jpg 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250508_viti-testa-rettangolare_4-600x450.jpg 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250508_viti-testa-rettangolare_4.jpg 800w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 856px) 293px, (min-width: 784px) 390px, (min-width: 712px) 585px, (min-width: 640px) 712px, \" \/><div class=\"fusion-rollover\">\n\t<div class=\"fusion-rollover-content\">\n\n\t\t\t\t\n\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<div class=\"fusion-rollover-categories\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/plants\/\" rel=\"tag\">PLANTS<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<a class=\"fusion-link-wrapper\" href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/rectangular-head-screws-for-industrial-plants-a-compact-and-effective-solution\/\" aria-label=\"Rectangular head screws for industrial plants: a compact and effective solution\"><\/a>\n\t<\/div>\n<\/div>\n<\/div>\n<h4 class=\"fusion-carousel-title\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/rectangular-head-screws-for-industrial-plants-a-compact-and-effective-solution\/\" target=\"_self\">Rectangular head screws for industrial plants: a compact and effective solution<\/a><\/h4><div class=\"fusion-carousel-meta\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/plants\/\" rel=\"tag\">PLANTS<\/a><\/div><\/div><\/div><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><span class=\"entry-title rich-snippet-hidden\">Lightened shank screws for rail transport<\/span><span class=\"vcard rich-snippet-hidden\"><span class=\"fn\"><a href=\"https:\/\/www.efsfasteners.com\/en\/author\/eufastersol-admin\/\" rel=\"author\">Eufastersol Admin<\/a><\/span><\/span><div  class=\"fusion-image-wrapper\" aria-haspopup=\"true\">\n\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250509_viti-a-gambo-alleggerito_1b.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"EFS - Prodotti - Viti a gambo alleggerito per trasporti ferroviari 42CrMo4\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250509_viti-a-gambo-alleggerito_1b-200x150.jpg 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250509_viti-a-gambo-alleggerito_1b-400x300.jpg 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250509_viti-a-gambo-alleggerito_1b-600x450.jpg 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2025\/05\/20250509_viti-a-gambo-alleggerito_1b.jpg 800w\" sizes=\"(min-width: 2200px) 100vw, (min-width: 856px) 293px, (min-width: 784px) 390px, (min-width: 712px) 585px, (min-width: 640px) 712px, \" \/><div class=\"fusion-rollover\">\n\t<div class=\"fusion-rollover-content\">\n\n\t\t\t\t\n\t\t\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<div class=\"fusion-rollover-categories\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/vehicles\/\" rel=\"tag\">VEHICLES<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<a class=\"fusion-link-wrapper\" href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/lightened-shank-screws-for-rail-transport\/\" aria-label=\"Lightened shank screws for rail transport\"><\/a>\n\t<\/div>\n<\/div>\n<\/div>\n<h4 class=\"fusion-carousel-title\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio-items\/lightened-shank-screws-for-rail-transport\/\" target=\"_self\">Lightened shank screws for rail transport<\/a><\/h4><div class=\"fusion-carousel-meta\"><a href=\"https:\/\/www.efsfasteners.com\/en\/portfolio_category\/vehicles\/\" rel=\"tag\">VEHICLES<\/a><\/div><\/div><\/div><\/div><div class=\"awb-swiper-button awb-swiper-button-prev\"><i class=\"awb-icon-angle-left\" aria-hidden=\"true\"><\/i><\/div><div class=\"awb-swiper-button awb-swiper-button-next\"><i class=\"awb-icon-angle-right\" aria-hidden=\"true\"><\/i><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-17 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:20px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-order-medium:0;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-order-small:0;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-column-has-shadow fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div style=\"text-align:center;\"><a class=\"fusion-button button-flat fusion-button-default-size button-default fusion-button-default button-3 fusion-button-default-span fusion-button-default-type\" target=\"_self\" href=\"https:\/\/www.efsfasteners.com\/en\/areas-of-application\/\"><span class=\"fusion-button-text\">DISCOVER THE APPLICATION SECTORS<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":1175,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"footnotes":""},"class_list":["post-2794","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Industrial Hammer Head Screws DIN 186, DIN 188 and DIN 261<\/title>\n<meta name=\"description\" content=\"Industrial hammer head screws according to DIN 186, DIN 188 and DIN 261. 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