(+tensile +strength +a193) | (+b7 +stud +bolt)
ASTM A193 B7m B7 High Strength Bolts and Nuts
Factory Wholesale Supply Tef/PTFE/Poli Coated/Painted Oil Chemical Industry Use B7/DIN975 Threaded Rod
ASTM a 193 B7 High Strength Alloy Steel Thread Stud Bolts
8.8 Grade High-Strength External Hexagon Screw Nut Set Bolt