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The ARP chromoly bolt is a 3/8-24 x 4.000-inch 12-point fastener with a 7/16 wrenching interface and black oxide finish, designed for fabrication and mechanical fastening. Chromoly construction plus the 12-point head accept common 12-point sockets and the 7/16 wrenching option offers easy tool access. The black oxide surface provides a consistent, low-reflective look.
ARP 3/8-24 x 4.000 12pt 7/16 wrenching black oxide bolts
