#10 X 1/2 SLOT IND HEX WSH T/AB BLACK OXIDE
#10 X 1/2 SLOTTED IND HEX WSHR T/AB BLK BLACK ZINC
#10 X 1/2 SL IND HEX WSHR T/AB ZINC
#10 X 1/2 SLOT IND HEX WSH T/AB W/SERR S/S
