
The ARP chromoly 1/4-28 x 3.250-inch 12-point bolt features a black oxide finish and serves as a threaded fastener for fabrication and assembly. Its 12-point head is compatible with 12-point sockets, and the chromoly construction supports consistent thread integrity and a protective finish. Use where a longer 1/4-28 fastener with black-oxide treatment is specified.
ARP 1/4-28 x 3.250 12pt black oxide bolts