3/4-10 X 1 3/4 HEAVY HEX BOLT A307 GR-B PLAIN
3/4-10 X 1 3/4 HEAVY HEX BOLT A325 W/OMC CERTS MUST ACCOMPANY PARTS
3/4-10 X 1 3/4 HEAVY HEX BOLT A193 B8M CL1 S/S
3/4-10 X 1 3/4 HVY HEX BOLT A193 B8M CL2 S/S