Chrome-plated button-head bolts fit most support brackets and breathers
Kit for 93-99 Evolution-style engines comes with two 1/2-13 x 1 3/4 bolts, four thick aluminum washers and four stainless steel washers
Kit for 99-06 Twin Cam-style engines comes with two 5/16-18 x 1 3/4 coarse-thread bolts, six stepped aluminum washers and four stainless steel washers