ARP fasteners Perma Loc Posi Locks, 12-Point Black Oxide AR300-8243

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Perma Loc Posi Locks, 12-Point Black Oxide3/8" Stud With .550" Body O.D, fits Aluminium Rockers (16 Pack)Brand: ARPPart Number: AR300-8243Description: A= 1.200&quot D= .550" Exclus ive 12-point head Patenteddesign Heat-treated premium grade A 8740 chrome moly steel 190,000 psitensile strength Precision machined threads Locking set screw ground flush with rockerarm stud Doesn’t require special tools Show more