{"id":3168,"date":"2026-07-08T15:36:15","date_gmt":"2026-07-08T13:36:15","guid":{"rendered":"https:\/\/www.efsfasteners.com\/services\/testing-and-certifications\/"},"modified":"2026-07-17T15:39:50","modified_gmt":"2026-07-17T13:39:50","slug":"testing-and-certifications","status":"publish","type":"page","link":"https:\/\/www.efsfasteners.com\/en\/services\/testing-and-certifications\/","title":{"rendered":"Testing and Certifications"},"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:40px;--awb-padding-bottom:40px;--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_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:20px;--awb-spacing-left-large:2.88%;--awb-width-medium:66.666666666667%;--awb-order-medium:0;--awb-spacing-right-medium:2.88%;--awb-spacing-left-medium:2.88%;--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-1 fusion-sep-none fusion-title-center fusion-title-text fusion-title-size-one\" style=\"--awb-text-color:var(--awb-color1);\"><h1 class=\"fusion-title-heading title-heading-center fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:30;line-height:1.5;\">Testing and Certifications for Industrial Fasteners<\/h1><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 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:20px;--awb-spacing-left-large:5.76%;--awb-width-medium:33.333333333333%;--awb-order-medium:0;--awb-spacing-right-medium:5.76%;--awb-spacing-left-medium:5.76%;--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-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\"><img decoding=\"async\" width=\"800\" height=\"600\" title=\"efs-test-certificazioni\" src=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/07\/efs-test-certificazioni.png\" alt class=\"img-responsive wp-image-3202\" srcset=\"https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/07\/efs-test-certificazioni-200x150.png 200w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/07\/efs-test-certificazioni-400x300.png 400w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/07\/efs-test-certificazioni-600x450.png 600w, https:\/\/www.efsfasteners.com\/wp-content\/uploads\/2026\/07\/efs-test-certificazioni.png 800w\" sizes=\"(max-width: 640px) 100vw, 400px\" \/><\/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-1\"><p>Testing, inspections and certifications are essential elements in supplies of industrial fasteners and fastening systems intended for technical applications. In many sectors, it is not sufficient to supply a component that is dimensionally compliant. It is necessary to document materials, mechanical characteristics, test results, non-destructive inspections and dimensional checks. EFS relies on specialized laboratories to carry out quality inspections, mechanical testing, documentation checks and certifications required by the customer or by the technical specification.<\/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=\"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;\">Quality Inspections and Technical Documentation<\/h2><\/div><div class=\"fusion-text fusion-text-2\"><p>Technical documentation makes it possible to ensure greater traceability and control over the supply. Depending on the sector and application, the customer may require material certificates, mechanical testing, non-destructive inspections, dimensional reports or documentation validated by third-party bodies. EFS supports the management of these requests by coordinating the process with qualified laboratories and manufacturers.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-5 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-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;\">3.1 Certification<\/h3><\/div><div class=\"fusion-text fusion-text-3\"><p>3.1 certification is an inspection document according to EN 10204. It certifies the characteristics of the material and reports the results of the tests carried out on the supplied lot. The 3.1 certificate is validated by the manufacturer\u2019s quality department. It is widely used documentation in industrial supplies when it is necessary to demonstrate material conformity with the required specifications.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-6 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-4 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;\">3.2 Certification<\/h3><\/div><div class=\"fusion-text fusion-text-4\"><p>3.2 certification is documentation according to EN 10204, validated both by the manufacturer and by an independent inspection body. It is required in critical applications, regulated sectors or supplies where the customer needs further verification in addition to 3.1 certification. It is frequent in industrial fields where traceability, material control and independent validation are fundamental requirements.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-7 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-5 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;\">Magnetic Particle Testing<\/h3><\/div><div class=\"fusion-text fusion-text-5\"><p>Magnetic particle testing is a non-destructive inspection method using magnetic particles. It is used to identify surface or subsurface defects on ferromagnetic components. It is a particularly useful test for detecting cracks, discontinuities or defects that are not immediately visible to the naked eye.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-8 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-6 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;\">Liquid Penetrant Testing<\/h3><\/div><div class=\"fusion-text fusion-text-6\"><p>Liquid penetrant testing is a non-destructive method used to highlight defects open to the surface of the component. The process uses high-penetration liquids that enter any surface discontinuities, making them visible during the inspection phase. It is a technique used on different materials and components when cracks, porosity or surface defects need to be checked.<\/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-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;\">Ultrasonic Testing<\/h3><\/div><div class=\"fusion-text fusion-text-7\"><p>Ultrasonic testing uses ultrasonic waves to detect internal defects or discontinuities in the material. It is a non-destructive technique suitable when it is necessary to verify the internal integrity of the component without compromising its use. It may be required for components intended for critical applications or subject to particularly high quality requirements.<\/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-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;\">Tensile Tests<\/h3><\/div><div class=\"fusion-text fusion-text-8\"><p>Tensile tests are mechanical tests carried out to verify the strength of the material under load. They make it possible to evaluate parameters such as tensile strength, yield strength and material behaviour under stress. They are fundamental tests for confirming the mechanical characteristics of the component and its suitability with respect to the required technical specifications.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-11 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-9 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;\">Impact Tests<\/h3><\/div><div class=\"fusion-text fusion-text-9\"><p>Impact tests are used to assess the material\u2019s ability to withstand impact. They are often carried out through Charpy testing and may also be required at low temperatures, when the component must ensure adequate performance in severe environmental conditions. They are important tests for materials intended for applications subject to impact, dynamic stress or low operating temperatures.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-12 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-10 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;\">Visual and Dimensional Report<\/h3><\/div><div class=\"fusion-text fusion-text-10\"><p>The Visual and Dimensional Report documents the visual, dimensional and geometric checks carried out on the component. The inspection is performed against the technical drawing, sample or specifications required by the customer. This report is useful for certifying component conformity in terms of dimensions, geometries, threads, finishes and visual characteristics.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-13 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-11 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;\">Customer-Requested Testing<\/h2><\/div><div class=\"fusion-text fusion-text-11\"><p>In addition to the most common certifications and inspections, EFS can support specific requests related to technical specifications, sector standards or the customer\u2019s internal procedures. Documentation can be defined during the quotation stage, in order to ensure a supply that is consistent with the project\u2019s technical, quality and documentation requirements.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-14 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-12 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;\">Request Certifications and Inspections for Your Supply<\/h2><\/div><div class=\"fusion-text fusion-text-12\"><p>EFS supports industrial companies, technical departments and quality departments in the management of tests, certifications and inspections on fasteners and fastening components. For specific requests, technical drawings, specifications, technical requirements or indications on the required documentation can be provided.<\/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-15 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-13 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-13\" 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-16 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 id=\"headerpaginaprove\" class=\"fusion-container-anchor\"><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-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-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 class=\"fusion-title title fusion-title-14 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-18 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, 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SECTORS<\/span><\/a><\/div><\/div><\/div><\/div><\/div><\/div>\n<\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":1199,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"footnotes":""},"class_list":["post-3168","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>Testing and Certifications for Fasteners | EFS<\/title>\n<meta name=\"description\" content=\"Testing, inspections and certifications for industrial fasteners: 3.1 and 3.2 certificates, magnetic particle testing, ultrasonic testing, tensile tests and dimensional reports.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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