5/8-11 X 1 1/4 HEAVY HEX BOLT ASME SA193 B7 PLAIN
5/8-11 X 1 1/4 HVY HEX BOLT ASTM A320 GR-L7
5/8-11 X 1 1/4 HEAVY HEX BOLT A307 GR-B PLAIN
5/8-11 X 1 1/4 HEAVY HEX BOLT A193 B8 STAINLESS