3/8-16 X 6 1/2 HHCS GR 5
3/4-16 X 6 1/2 HEX HD GR5 BOLTS
3/4-16 X 6 1/2 HEX HD GR8 PLAIN
3/4-16 X 6 1/2 HEX HD GR8 PLATED