Up for grabs are new thick cylinder head bolt / stud washers. Using thick washers will evenly spread pressure around the cylinder head unlike some of the thinner washers. Thick washers will not squish once torqued.Washers measure 3/8 (I.D.) x 5/8 (O.D.) with a thickness of .104. Great for Triumph, BSA, and Norton applications that can use these same spec washers.Please note that washers are sold each as pictured**Features**Zinc plated3/8 X 5/8 X .104O.E.M. part number is 82-2184 or F2184