1/2-13 X 8 1/2 HHCS GR 5
1/2-13 X 8 1/2 HHCS GRADE 2
1/2-13 X 8 1/2 HHCS GR 5 ZINC
1/2-13 X 8 1/2 HEX HD GR8
1/2-13 X 8 1/2 HHCS 18-8 SS