12 Point Nuts;Stud Is Placed Vertically In Special Racks And Precisely Heat Treated To 200,000 PSI;Centerless Ground To Make It As Close To Perfectly Concentric As Possible;Thread Rolled After Heat Treat, Which Gives Them About Ten Times Better Fatigue Strength Than Those Studs That Are Threaded Prior To Heat Treat;Uses A Premium Grade 8740 Alloy That Is Rated Far Superior To Aircraft Quality

• ARP 2084301 Head Stud Kit

ARP 2084301 Head Stud KitARP