Revision as of 01:38, 8 March 2014 by Root (Created page with 'Category:Engineering == Unified National Thread Standard == ;UNC: Coarse threads ;UNF: Fine threads ;UNEF: Extra Fine threads ;UNS: Special threads (the thread pitch and di…')
Unified National Thread Standard
- Coarse threads
- Fine threads
- Extra Fine threads
- Special threads (the thread pitch and diameter have some special relationship -- perhaps for a special application).
- Special threads (rounded root radius) with threads designed to be resistant to wear and fatigue. They are usually used in safety applications.