Comparison : Item # /75F525BTHP=0/A307B, 3/4-16 X 5 1/4 ELLIPTICAL HD BOLT U-481 A307 GRADE B
Item # /100C1050BTH2P=50, 1-8 X 10 1/2 TAPER HD BOLT GR 2, 1/2 PARALLEL
Item # /100C500BTH2E=0, 1-8 X 5 TAPER HD BOLT GR 2, E=0, D=3
Item # /100C500BTH2E=0/D=3.5, 1-8 X 5 TAPER HD BOLT GR 2, E=0, D=3.5
Item # /100C550BTH2E=0, 1-8 X 5 1/2 TAPER HD BOLT GR 2, E=0, D=4