Black Oxide 10-PC Pack Metric Special Purpose Washers

Black Oxide 10-PC Pack Metric Special Purpose WashersA true high performance washer from ARP, available in a variety of sizes and thicknesses, and with or without I. D. (inside diameter) chamfers. 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. For example, our 3 8? I. D. washers, come in five different O. D.s, three thicknesses and two are in ARP stainless. Special connecting rod

as well as protecting the threads in your engine block

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

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

Nuts not included

We highly recommend using a stretch gauge when installingrod bolts and other fasteners where it is possible to measure thelength of the bolt after tightening

Studs are preferred by many Pro engine builders because they eliminate the chance of pinching gaskets and contribute to easier engine assembly

To cure this all-too-common problem

then allow the nuts to be easily installed without the worry of cross-threading

substantially stronger than Grade 8 hardware

as well as with a conventional hex head or 12-point (great for tight

To ensure proper sealing of valve covers

Special connecting rod washers are available