1/2-13 X 3 1/2 HEX CAP SCREW 316 S/S
1/2-13 X 3 1/2 HEX CAP SCREW GR 5 ZINC (Cr3)
1/2-13 X 3 1/2 HEX CAP SCREW GR 8 PLAIN
1/2-13 X 3 1/2 HEX CAP SCREW GR 8 Z&Y