Fastener Tech • ARP Ultra-Torque • Find Your Kit Instructions • Fastener Installation Overview • Torque Value Lookup • Fastener Installation FAQs • Fastener Metallurgy • Identifying Fastener Failure Causes • Fastener Design Basics

Search Fasteners to find nuts, bolts and washers by material, diameter, thread pitch and length. Use the menu to select the type of fastener and you will be taken to a results page. From there you can use the Secondary Menu to refine your search further.

ARP uses only the top two grades (SDF and CHQ), which cost twice as much, but provide the foundation for defect-free fasteners. These materials come in bar stock (for studs) and huge coils (for bolts).

These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.

775 kits found for Head Studs & Bolts : Page 1 of 33 | Next | Last: Didn't find the kit you were looking for?

Important: if you have an aftermarket connecting rod with an ARP bolt, please use the chart below to contact the rod manufacturer for the stretch/torque value. The calculation of those values is solely up to the rod manufacturer.

ARP is the first to develop manufacturing and testing processes for fasteners with Custom Age 625+. Best of all it is less expensive and expected to soon replace MP-35 as the material of choice in the high strength, super-alloy field.

ARP High Performance Series bolts are cold forged to ensure molecular integrity, heat treated prior to thread rolling and machining and rated at 180,000 psi tensile strength. Optimum design, enhanced reliability and increased strength are the main attributes of ARP’s High Performance Series fastener kits.

68 kits found for Engine & Accessory Fasteners : It’s easy to assemble a show-quality engine when you use ARP’s handy Engine & Accessory Fastener Kit. Virtually everything you need comes completely organized in one convenient package (no need to …

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