Exhaust Barrel Nut

The exhaust barrel nut has 8mm threads in one end and a hex socket at the driver end. Screw it on and tighten it down with an allen key. You don`t have to worry about spanner clearance and the round exhaust barrel nut doesn`t dig into the exhaust flange as with standard hex nuts. Use them to bolt on the alternator stand, fuel pump and whatever you want to clean up and customize your engine. Sold Each.