1/2-20 x 4.000 hex SS bolts

1/2-20 x 4.000 hex SS boltsMaterial: Stainless Steel Finish: Stainless Material 2: Finish 2: Origin: USA

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

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

for proper cap alignment

Our special purpose washers are constructed from either premium chrome moly with a black oxide finish or polished ARP stainless steel and are hardened and parallel-ground

ARP uses a unique manufacturingprocess where the alignment sleeve is roll formed onto the shaft(not welded or pinned)

or use the chart on page 25 of thiscatalog for ARP fasteners

That’s why ARP developed the Wave-Loc design that features symmetrical waves and has an effective interference range of

Available to fit most any ring gear setup ranging from popular 9

delivers a material with superior fatigue characteristics and typically tensile strength in the 260

000 psi tensile strength material and proprietary (ARP2000®) 220

the bolt must be able to fit snugly and a knurl is applied

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