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The ARP 5/16" ID, 13/16" OD chamfer washer is a wide-diameter washer with a beveled edge, designed to fit 5/16-inch fasteners and promote proper seating on countersunk or angled surfaces. Suited for engine hardware and assembly maintenance, the chamfer helps align bolts and spread load across a larger area, supporting consistent clearance and repeatable fastener geometry.
ARP 5/16 ID 13/16 OD chamfer washers
