Threaded Bolt & Nut Factory

🖨 3D Printing

Generate real helical threaded geometry—not just smooth cylinders. Download the bolt, switch to matching nut, and download that STL too. Free, private, no account, no credits.

Customize your design

Nominal thread diameter (mm)Thread pitch (mm)Bolt shaft length (mm)Bolt head height (mm)Nut thickness (mm)Radial thread clearance (mm)Preview / export part

3D preview

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Preview is rendered in your browser. STL export contains the full geometry.

Preparing your design…

All 3D tools

Threads are approximate printable profiles, not certified ISO fasteners. Clearances depend on your printer and material. Never use printed fasteners for safety-critical loads. Files stay on this device. STL has no built-in unit metadata; generated dimensions are in millimeters. Always inspect the exported model and its sliced layers before printing.