Disc Brake Bolt and Washer 1/2-20 UNF x 50mm Long Pinit $11.20 SKU: PCE462.1016 Speedmaster ring gear bolts are forged from premium-grade 8740 chromoly steel and heat-treated to a rating of 200,000 psi. Quantity -+ Add to Cart Details Brand:SpeedmasterPart Number:PCE462.1016Part Type:BoltHead Style:12-pointWrench Diameter (in.):5/8 in.Thread Size:1/2-20 in.Underhead Length (in.):1.9... DetailsBackDetailsBrand:SpeedmasterPart Number:PCE462.1016Part Type:BoltHead Style:12-pointWrench Diameter (in.):5/8 in.Thread Size:1/2-20 in.Underhead Length (in.):1.960 in.Washer Included:NoFastener Material:ChromolyFastener Finish:Black OxideQuantity:Sold Individually.See MoreSee Less