History & Background on ARP They say that to be successful you must identify a need and satisfy it. Back in 1968 racing enthusiast Gary Holzapfel saw that many of his friends’ broken engines were caused by fastener failure.
ARP 300-8395 Black 7/16-20, low head, .600 flange OD 12pt nut kit
ARP 300-8391 12 Point Nuts 3/8"-24 RH Thread ARP pack of 10
Arp 300-8331 5/16-24 12pt nut kit
ARP 300-8337 M12 X 1.25 Nuts Set of 10 Flanged 12-Point Nuts
ARP 300-8334 Chrome Moly 9/16" Socket 12PT 1/2"-20 RH Thread Nut Kit Set Of 10
ARP 300-8241, rocker arm nuts, polylock, 3/8-24in, non-roller, Set of 16