5-Pack Bolt Kit, 12-Point S/S AR771-1017 Product:M8 x 1.25 Thread x 16mm UHL With 10mm Socket Head The hand porting inside the

The hand porting inside the collector ensures unrestricted

5/16 UNC thread

BB Chev 2" Round Port Header FlangeStainless Steel

AFC1330SRBT

physical sizes

5-Pack Bolt Kit, 12-Point S/S AR771-1017 Product:M8 x 1.25 Thread x 16mm UHL With 10mm Socket Head The hand porting inside the5 Pack Bolt Kit, 12 Point S SM8 x 1. 25 Thread x 16mm UHL With 10mm Socket Head AR771 1017 771 1017 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 Grade 8