Bolts, Studs, & Fasteners

Aftermarket and OEM bolts, studs, & fasteners for your Subaru.

Bolts, Studs, & Fasteners

Aftermarket and OEM bolts, studs, & fasteners for your Subaru.

Showing 1 - 6 of 6 items
  • ARP Pro Series cylinder head studs are cold-forged to ensure molecular integrity. They're heat-treated prior to thread rolling and machining. ARP Pro Series kits are also available with 12-point nuts, and all kits come complete with hardened parallel washers for even load distribution and accurate torque readings. With hundreds of models ready to ship, these cylinder head fasteners can be ordered for virtually any style of engine.

    Subaru
  • ARP uses a premium grade 8740 alloy that is rated far superior to "aircraft" quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi. 

    Scion
    Subaru
  • The ARP Pro Series Main Bolt Kits are forged from premium 8740 chrome moly and all the bolts feature generous under-head radius and heat treating for utmost reliability. The threads are rolled after heat treating, which makes them about 1000% stronger than most other main bolts. These bolts are nominally rated at 200,000 psi, and are application-specific main bolts with reduced wrenching head and are designed for use in competition applications. Parallel-ground, hardened washers are included with each kit.

    Subaru
  • ARP Pro series connecting rod bolts are precision CNC-machined to exacting specifications and designed for optimum reliability. They are heat-treated and threads are rolled to provide up to ten times more fatigue strength. This makes them far superior to standard OEM fasteners in terms of durability, and fully capable of handling the extra stress of high-combustion engines.

    Subaru
  • This newly formulated super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness – with complete resistance to atmospheric corrosion and oxidation. 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. Typical tensile strength is 260,000-280,000 psi.

    Subaru
  • ARP Head Studs are a complete part of your engine rebuilding breakfast. These are the 11mm head studs, and these are a great idea if you are rebuilding your engine back to stock specs, or if you are building your car to climb Mount Everest.

    Subaru
Showing 1 - 6 of 6 items