Bolts, Hex Head, Custom 450, Black Oxide, 1/4 in.-20 RH Thread, 2.500 in. UHL, Set of 3. I completed my car project with the use of almost all ARP bolts. ARP Chromoly Bolts. ARP Custom 450. Now you can use premium-quality ARP chromoly bolts to install most anything on a car, boat, or trailer.
