ARP Head Stud Kit (M11) CA625+

ARP Custom Age 625 Plus

ARP's Custom Age 625 Plus material is a newly formulated super-alloy that demonstrates superior fatigue cycle life, tensile strength, and toughnessā€”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 is expected to soon replace MP-35 as the material of choice in the high-strength, super-alloy field. Typical tensile strength is 280,000 psi.