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ARP stainless steel washer with a 3/8-inch inner diameter and .655-inch outer diameter, supplied as a single unchamfered washer. This precision washer provides a uniform bearing surface to distribute clamp for 3/8-inch fasteners in engine and automotive assemblies. The unchamfered edge ensures full contact beneath bolt heads or nuts. Use where a standard 3/8-inch flat washer of this OD is specified.
ARP 3/8ID .655OD SS no chamfer washer
