Spectre's Crankshaft Pulley Bolt Kit is engineered to provide premium quality hardware for Chevrolet crankshaft pulleys. This set includes three 3/18 inch-24 by 1 inch hex head bolts. Manufactured from high quality steel, these grade 5 bolts feature a zinc plated finish and come with lock washers to prevent loosening. Product Features:Intended for use with Chevrolet crankshaft pulleysKit includes three grade 5 hex head boltsBolts measure 3/18 inch-24 by 1 inchFeatures a zinc-plated finishMade from high quality steel