1/2-20 x 3.500 12pt SS bolts

1/2-20 x 3.500 12pt SS boltsMaterial: Stainless Steel Finish: Polished Material 2: Finish 2: Origin: USA

they should never be re-used

These fasteners play a key role in both the performance and safetyof a vehicle

Any increases in combustion pressure can lead to problems like blown head gaskets or catastrophic engine failure

square drive forged into bolt head

They’re designed to make it as easy as possible to install a pan and seal it properly

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

Made from premium grade 8740 andheat-treated to 190

It’s the fastener of choice

They are available in several different strength materials to safely handle applications from performance street to all-out competition

000 psi and are able to easily handle the tremendous acceleration shock loads (shear) and lateral forces (elongation) found in racing

threadpitch to thread pitch

This procedure (done only to the shorter studs)more equalizes the “stretch” of both studs