5/8-11 X 1 3/4 HEAVY HEX BOLT ASME SA193 B7 PLAIN
5/8-11 X 1 3/4 HEAVY HEX BOLT A193 B-7
5/8-11 X 1 3/4 HEAVY HEX BOLT A325 W/OMC CERTS MUST ACCOMPANY PARTS
5/8-11 X 1 3/4 HEAVY HEX BOLT A307 GR-B PLAIN