Fastener Style: Bolt
Thread Size: 8mm x 1.25
Head Style: 12-point
Underhead Length (in): 1.181 in.
Underhead Length (mm): 30.00mm
Fastener Material: Steel
Fastener Finish: Black oxide
Quantity: Sold as a set of 12.
ARP manufactures a variety of header bolt kits to facilitate the installation of your headers. Rated at 170,000 psi, they're much stronger than stock and will last under even the most severe conditions. Each kit includes the specific number of parts required for the desired application, plus premium-quality washers and either hex or 12-point heads.