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The ARP chromoly bolt is a 3/8-24 x 3.500-inch 12-point fastener with a 7/16 wrenching interface and black oxide finish for fabrication and mechanical assemblies. Chromoly material and a 12-point head accept common 12-point sockets; the 7/16 wrenching option offers direct tool fit. The black oxide finish maintains a consistent dark appearance on exposed hardware.
ARP 3/8-24 x 3.500 12pt 7/16 wrenching black oxide bolts
