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Explore Nut, Bolt & Washer Specifications

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Fastener Materials
https://www.calfast.com/7000-Fastener-Materials
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Fasteners Standards
Fasteners that adhear to international standards.
https://www.calfast.com/7004-Fasteners-Standards
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- ASME
- ASTM
- DIN
- ISO
- SAE
Platings, Coatings & Finishes
https://www.calfast.com/6994-Platings-Coatings-Finishes
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Unified Thread System Designations
The Unified Thread System (or Unified Thread Standard - UTS) defines a standard thread form and series - along with allowances, tolerances, and designations - for screw and bolt...
https://www.calfast.com/6997-Unified-Thread-System-Designations
Featured Categories >
- U.N.C. (Unified National Coarse)
- U.N.F. (Unified National Fine)