ASTM F879 |
This specification covers the chemical and mechanical requirements for stainless steel inch hexagon socket button (SBHCS) and flat countersunk (SFHCS) head cap screws with nominal thread 0.060 through 0.625 in. intended for use in applications requiring general corrosion resistance. |
ASME B18.3 |
Covers the complete general and dimensional data for various types of hexagon socket cap screws, shoulder screws, set screws, and hexagon keys recognized as an American National Standard. |
ASME B1.1 UNC & UNF Class 2A |
Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads. |