The ARP washer kit includes two black oxide washers with a 1/2 in. inner diameter and 1.30 in. outer diameter, supplied as a two-piece set for fastening use. These black oxide-finished washers are sized for 1/2 in. fasteners and are suitable for engine and general assembly hardware applications. The compact kit provides appropriately sized washers for correct seating and spacing where a 1/2 in. ID washer is required.
ARP 1/2 ID 1.30 OD Black Oxide Washer Kit (2 Pieces)