1/2-13X3 1/2 Hex Head Flange Non Serrated Frame Bolt IFI-111 2002 Grade 8 Black Phosphate (Pack Qty 175) BC-5056BF

For use on truck frames. The flange eliminates washers and helps compensate for a misaligned hole. Used with a Grade-GT lock nut, the bolt system resists bolt slippage by distributing the clamp load over a wide area AISI 4037 - 5135 or equivalent alloy steel Grade-8 frame bolts shall be heat-treated, oil-quenched and tempered at a minimum temperature of 800°F