B7S Flange Bolts
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B7S Carbon Steel Flange Bolts
- The material for B7 Studs and Nuts conform to the requirements of ASTM A193 Grade B7, AISI 4140, 4142, 4105
- High strength carbon steel, maximum yield strength of 105,000 PSI and minimum tensile strength of 125,000 PSI
- For 1” and smaller : threads are Unified inch coarse or fine series (UNC or UNF series), Class 2A, in accordance with ANSI/ASME B1.1
- For size larger than 1”: threads are Unified coarse or 8 thread series (UNC or 8 UN Series)
- Screw threads are based on System 21 of ANSI/ASME B1.3