5-Pack Bolt Kit, 12-Point Head Black Oxide AR642-4000 Product:3/8" UNC x 4.000" UHL With 3/8" Socket Head 4 into 1 Round Turbo

4 into 1 Round Turbo Merge Collector

AF3502-2755

AF64-2250BLK

Heat-treated Prior To Thread Rolling And Machining

AF450-08-30M

5-Pack Bolt Kit, 12-Point Head Black Oxide AR642-4000 Product:3/8" UNC x 4.000" UHL With 3/8" Socket Head 4 into 1 Round Turbo5 Pack Bolt Kit, 12 Point Head Black Oxide3 8" UNC x 4. 000" UHL With 3 8" Socket Head AR642 4000 642 4000 Now you can use premium quality ARP stainless steel or chrome moly fasteners to install most anything on a car, boat or trailer. ARP's specially alloyed stainless steel bolts and heat treated 8740 chrome moly bolts with black oxide finish are nominally rated at 180,000 psi tensile strength to provide a substantial extra margin of safety over