ARP Bolts are manufactured through an exclusive cold heading process, which is typically conducted at room temperature and is considerably cooler than most metal forming processes. The ARP company holds several patents on these processes, which produce high-quality, durable bolts. ARP uses higher nickel and cobalt alloys for its threads and shanks and uses power extrusion to reduce and harden the shank.
The ARP fastener is made from steel, which is a tough, ductile material. This material is then subjected to two separate processes called cold heading and hot heading. Cold heading uses a lower-temperature process, whereas hot heading is carried out at high temperatures. Moreover, the ARP bolt can be reused, unlike TTY fasteners, which are usually only suitable for a single-use.
ARP Bolts are made from the highest grade steel available and are more precise than hardware bolts. They use aircraft-grade steel (tier two material), which is stronger than tertiary-two material. These bolts have a tensile strength of 220,000 psi, which is significantly higher than the stock ones. This means that they are ideal for engines and other automotive applications.
When you compare ARP fasteners to other types, you’ll notice a difference in the quality of the nuts. ARP fasteners are made with precision and accuracy – the tolerances of ARP bolts are five times higher than those of other brands. What sets ARP Bolts apart? What sets ARP Bolts apart? Para: ARP’s precision and accuracy make them the ideal choice for critical parts of your engine. ARP 12-point hex nuts are the most precise in the world, with an accuracy of 0.001 inches. That’s five times higher than the aerospace standard. And unlike other studs, ARP’s studs are manufactured in the U.S.A.