1-8 X 5 1/2 HVY HEX BOLT A307 GR-B PLAIN ORIGINAL MATERIAL CERTS
1 1/8-8 × 5 1/2 HEAVY HEX BOLT ASTM 193 316 S/S AS PER ASTM 193 B8M
1 1/4-8 X 5 1/2 HEAVY HEX BOLT A193 B7 PLAIN
1 1/2-8 X 5 1/2 HVY HEX BOLT A193 B7
1 3/4-8 X 5 1/2 HEAVY HEX BOLT A193 B8M CL2