Enhance the performance and durability of your headers with MR. GASKET Header Bolt Washers. A set of 12 split lock washers made of high-quality steel with a black oxide finish ensures a secure hold. These washers feature a 0.375-inch ID and 0.5-inch OD,...

Header Bolt - 3/8-16 in Thread - 0.75 in Long - 7/16 in Hex Head - Steel - Set of 16

Header Bolt - 3/8-16 in Thread - 0.75 in Long - Hex Head - Steel - Black Oxide - AMC V8 / GM V8 / Mopar B / RB-Series - Set of 12

Header Bolt - 3/8-16 in Thread - 0.75 in Long - Hex Head - Steel - Black Oxide - Set of 100

Header Bolt - 3/8-16 in Thread - 0.75 in Long - Allen Head - Steel - Black Oxide - AMC V8 / GM V8 / Mopar B / RB-Series - Set of 12

Header Bolt - 3/8-16 in Thread - 1 in Long - Allen Head - Steel - Black Oxide - AMC V8 / GM V8 / Mopar B / RB-Series - Set of 12