5/16 ID .550 OD washers. Genuine ARP hardware, supplied as kit 200-8578.Sold by size and thread rather than by vehicle.Details Kit number: 200-8578 Category: Bulk Fasteners Product group: Washers California Proposition 65 warning⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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