M8 x 1.25 x 16 hex SS bolts

M8 x 1.25 x 16 hex SS boltsMaterial: Stainless Steel Finish: Polished Material 2: Finish 2: Origin: USA

Studs are manufactured with a unique nut-starter nose that helps prevent cross-threading

HIGH PERFORMANCE SERIESHigh Performance head bolts are available with a reduced wrenching hex or 12-point and wide area flanged head that eliminates theneed for valve train removal to facilitate cylinder head retorquing

each stud is centerless ground to makeit as close to perfectly concentric as possible

the threads are machined exactly perpendicular to the bottom of the adjuster

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Pro Series main bolts are application-specific

Most applications have undercut short bolts that can help eliminate head gasket failures through providing more “stretch” to compensate for the additional compression of gaskets

These premium grade bolts are engineered to properly engage the manifold threads and resist loosening

and -6 thru -20 O-ring sizes

ARP studs are thread rolled after heat-treat

while bolt kits are shipped with the required flat washers

threadpitch to thread pitch