5/8-11 X 7 1/2 HHCS GR 5
5/8-11 X 7 1/2 GR.8 HEX C/S
5/8-11 X 7 1/2 HEX HD GR5 ZINC PLTD
5/8-11 X 7 1/2 HHCS GR 8 PLATED