Hex, Black Oxide, Steel, 7/16-20 in. RH Thread Size, 31/32 in. Underhead Length
MR GASKET FLYWHEEL BOLTS, BLACK, SET OF 6 -- Fits Chevrolet and ford with 7/16 in.-20 x 31/32 in. thread size; These alloy steel fasteners are manufactured for reliability, heat-treated to grade 8 specifications for extra strength, black oxide finish effectively resists rust and corrosion while providing a clean professional appearance; Includes lock washers; With Mr. Gasket's limited 90-day warranty.