{"id":3070,"date":"2026-07-03T15:27:06","date_gmt":"2026-07-03T13:27:06","guid":{"rendered":"https:\/\/www.efsfasteners.com\/products\/special-bolts\/custom-bolts-to-drawing\/"},"modified":"2026-07-17T16:35:06","modified_gmt":"2026-07-17T14:35:06","slug":"custom-bolts-to-drawing","status":"publish","type":"page","link":"https:\/\/www.efsfasteners.com\/en\/products\/special-bolts\/custom-bolts-to-drawing\/","title":{"rendered":"Custom Bolts to Drawing"},"content":{"rendered":"

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PRODUCTS<\/a> | SPECIAL CUSTOM-MADE BOLTS<\/a><\/p>\n<\/div>

Custom Bolts to Drawing<\/h1><\/div><\/div><\/div>
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When standard fastening components do not meet the requirements of the project, the solution is made-to-drawing fasteners<\/strong>. Non-conventional dimensions, dedicated geometries, special materials or particular performance requirements require customized production, developed starting from the customer\u2019s technical specifications.<\/p>\n

EFS coordinates the production of made-to-drawing fasteners by selecting qualified Italian and European manufacturers and managing the entire process, from project review through to delivery of the finished component. The objective is not simply to produce a mechanical part, but to ensure that each component meets the dimensional, mechanical and documentation requirements of the application.<\/p>\n<\/div><\/div><\/div>

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When to Choose Made-to-Drawing Fasteners<\/h2><\/div>

Made-to-drawing production becomes necessary when ISO, DIN, UNI or ASTM standards do not provide a component with the required characteristics, or when a standard solution is not compatible with the project.<\/p>\n

The most frequent requests concern special lengths, non-standard diameters, dedicated thread pitches, customized geometries, particular materials or specific treatments. In other cases, an existing component must be reproduced, maintaining full interchangeability with the original part or adapting it to new project requirements.<\/p>\n

Each supply therefore originates from a specific application need and is developed according to the actual operating conditions.<\/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

From Drawing to Finished Component<\/h2><\/div>

The production of a special fastening component requires the coordination of different technical and manufacturing skills.<\/p>\n

The process begins with the analysis of the technical drawing or sample provided by the customer, checking geometries, tolerances, threads, materials and functional requirements. The most suitable production process, heat and surface treatments, machining operations and any required inspections are then identified.<\/p>\n

During production, each stage is monitored to ensure compliance with the project specifications and repeatability of supplies, aspects that are essential especially in continuous procurement programmes.<\/p>\n<\/div><\/div><\/div>

Components That Can Be Manufactured to Drawing<\/h2><\/div>

Made-to-drawing production does not concern a single product family, but a wide range of fastening components intended for many different industrial sectors.<\/p>\n

The most commonly requested components include:<\/p>\n