{"id":2842,"date":"2026-06-22T16:33:57","date_gmt":"2026-06-22T14:33:57","guid":{"rendered":"https:\/\/www.efsfasteners.com\/products\/nuts\/drawing-nuts\/"},"modified":"2026-07-17T16:12:51","modified_gmt":"2026-07-17T14:12:51","slug":"drawing-nuts","status":"publish","type":"page","link":"https:\/\/www.efsfasteners.com\/en\/products\/nuts\/drawing-nuts\/","title":{"rendered":"Drawing Nuts"},"content":{"rendered":"

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PRODUCTS<\/a> | NUTS<\/a><\/p>\n<\/div>

Drawing Nuts<\/h1><\/div><\/div><\/div>
\"EFS<\/span><\/div><\/div><\/div><\/div><\/div>
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Made-to-drawing nuts are manufactured when the standard solutions available on the market are not sufficient to meet the technical requirements of the application. Non-standard dimensions, particular geometries, special materials, dedicated treatments or specific assembly requirements may require the production of fully customized components.<\/p>\n

In many industrial sectors, the nut is not simply an accessory of the fastening system, but a component designed together with the screw, stud or pin to ensure mechanical performance, safety and long-term durability.<\/p>\n

For this reason, EFS supports the supply of special made-to-drawing nuts through a network of qualified Italian and European manufacturers, selected according to the required machining operations and the characteristics of the project.<\/p>\n<\/div><\/div><\/div>

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Types of Special Nuts That Can Be Manufactured<\/h2><\/div>

The customization possibilities are very broad and may involve geometries, materials, surface treatments and documentation requirements.<\/p>\n

The most commonly requested types include special hex nuts, flanged nuts, self-locking nuts, square nuts, extension nuts<\/a>, coupling nuts and components developed entirely according to the customer\u2019s drawing.<\/p>\n

Machining operations may include turning, milling, drilling, lightening operations, dedicated markings, special metric or inch threads and non-standard dimensions not available in commercial fasteners.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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NEED A PARTNER FOR SPECIAL BOLTS?<\/h3><\/div>

We supply custom-designed fasteners for critical applications \u2014 with certified quality, full traceability, and technical support.
Fill out the contact form or call us: our team is ready to assist you with tailored solutions.<\/p>\n<\/div><\/div><\/div>

CONTACT US<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\n

Materials and Coatings<\/h2><\/div>

Material selection is one of the most important aspects in the design of a special nut.<\/p>\n

EFS can support supplies in carbon steels, high-strength alloy steels, A2 and A4 stainless steels, ASTM materials for Oil & Gas applications, Duplex, Super Duplex, Inconel, Hastelloy and other alloys intended for critical applications.<\/p>\n

Surface treatments can also be defined according to the operating environment and the required performance. The most commonly used include electrolytic zinc plating, hot-dip galvanizing, Geomet\u00ae, zinc-nickel coating, electroless nickel plating, phosphating and black oxide treatment.<\/p>\n

In particularly demanding applications, the surface treatment can play a decisive role in corrosion protection and in the overall durability of the connection.<\/p>\n<\/div><\/div><\/div>

EFS Capabilities<\/h2><\/div>

EFS manages supplies of made-to-drawing nuts for sectors such as machinery, energy, Oil & Gas, railway, heavy-duty automotive, cement plants, offshore and industrial plant engineering.<\/p>\n

The activity includes technical support in material selection, coordination of machining operations, management of surface treatments and quality controls required by the order.<\/p>\n

On request, EN 10204 3.1 or 3.2 certificates, dimensional inspections, mechanical testing and full raw material traceability can be provided.<\/p>\n

This section presents some examples of special nuts manufactured by EFS for specific industrial applications, showing the different customization possibilities offered by made-to-drawing production.<\/p>\n<\/div><\/div><\/div>

FAQ<\/h2><\/div>

When Is It Necessary to Manufacture a Made-to-Drawing Nut?<\/h3><\/div>

When the required dimensions, material or functional characteristics are not available in standard catalogue products.<\/p>\n<\/div>

Is It Possible to Manufacture Nuts in Special Materials?<\/h3><\/div>

Yes. EFS can manage supplies in Duplex, Super Duplex, Inconel, Hastelloy, ASTM materials for Oil & Gas applications and other alloys used in the most critical industrial sectors.<\/p>\n<\/div>

Can Made-to-Drawing Nuts Be Supplied with Certification?<\/h3><\/div>

Yes. Depending on the project specifications, they can be supplied with EN 10204 3.1 or 3.2 certificates and dedicated technical documentation.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

<\/div>

NEED A PARTNER FOR SPECIAL BOLTS?<\/h3><\/div>

We supply custom-designed fasteners for critical applications \u2014 with certified quality, full traceability, and technical support.
Fill out the contact form or call us: our team is ready to assist you with tailored solutions.<\/p>\n<\/div><\/div><\/div>

CONTACT US<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\n

PRODUCTS APPLIED TO INDUSTRY<\/h3><\/div><\/div><\/div>
Special Screws for Lamellar Joints<\/span>Eufastersol Admin<\/a><\/span><\/span>
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MECHANICS<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<\/a>\n\t<\/div>\n<\/div>\n<\/div>\n

Special Screws for Lamellar Joints<\/a><\/h4>
MECHANICS<\/a><\/div><\/div><\/div>
Special Prisoners for Nuclear Plants<\/span>Eufastersol Admin<\/a><\/span><\/span>
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ENERGY<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<\/a>\n\t<\/div>\n<\/div>\n<\/div>\n

Special Prisoners for Nuclear Plants<\/a><\/h4>
ENERGY<\/a><\/div><\/div><\/div>
Hexagonal Nut for Oil&Gas Industry<\/span>Eufastersol Admin<\/a><\/span><\/span>
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OIL & GAS<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<\/a>\n\t<\/div>\n<\/div>\n<\/div>\n

Hexagonal Nut for Oil&Gas Industry<\/a><\/h4>
OIL & GAS<\/a><\/div><\/div><\/div>
Specialty Hardware for the Port Crane Industry<\/span>Eufastersol Admin<\/a><\/span><\/span>
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CONSTRUCTION SITES AND LIFTING<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<\/a>\n\t<\/div>\n<\/div>\n<\/div>\n

Specialty Hardware for the Port Crane Industry<\/a><\/h4>
CONSTRUCTION SITES AND LIFTING<\/a><\/div><\/div><\/div>
Rectangular head screws for industrial plants: a compact and effective solution<\/span>Eufastersol Admin<\/a><\/span><\/span>
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PLANTS<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<\/a>\n\t<\/div>\n<\/div>\n<\/div>\n

Rectangular head screws for industrial plants: a compact and effective solution<\/a><\/h4>
PLANTS<\/a><\/div><\/div><\/div>
Lightened shank screws for rail transport<\/span>Eufastersol Admin<\/a><\/span><\/span>
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VEHICLES<\/a><\/div>\t\t\t\t\t\n\t\t\n\t\t\t\t\t\t<\/a>\n\t<\/div>\n<\/div>\n<\/div>\n

Lightened shank screws for rail transport<\/a><\/h4>
VEHICLES<\/a><\/div><\/div><\/div><\/div>
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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":1178,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"100-width.php","meta":{"footnotes":""},"class_list":["post-2842","page","type-page","status-publish","hentry"],"yoast_head":"\nMade-to-Drawing and Special Nuts to Customer Specification | EFS<\/title>\n<meta name=\"description\" content=\"Made-to-drawing nuts manufactured according to customer specifications in steel, stainless steel and special alloys. 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