4-40 X 5/16 SOCKET CAP SCREW ZINC
4-40 X 5/16 SOCKET CAP SCREW BLACK OXIDE
4-40 X 5/16 SOCKET CAP SCREW MOLY LUBE
5-40 X 5/16 SOCKET CAP SCREW **
6-40 X 5/16 SOCKET CAP SCREW **