B7 Studs

B7 Studs

Alloy Steel, AISI 4140/4142 Quenched and Tempered

These Grade B7 threaded rods meet the pressure and temperature requirements of ASTM A193 and are often used to secure pressure tanks, valves, and flanges.
Zinc yellow-chromate plated steel threaded rods resist corrosion in wet environments.

Blue PTFE-coated steel threaded rods are chemical resistant and have a slippery surface to thread on smoothly. Black-oxide steel threaded rods have a dark surface color and are corrosion resistant in dry environments.

Grade Appropriate A194 2H Heavy Hex Nut

Grade Size Tensile Ksi,min Yield,ksi,min Elong,%,min RA%min HBW HRC
B7 Up to 2-1/2 125 105 16 50 321 max 35 max
2-5/8-4 115 95 16 50
4-1/8-7 100 75 18 50