When installing aftermarket exhaust headers you will need new header bolts, factory exhaust manifold bolts won't work as the flange could be thicker, or the original bolts could be damaged. These Aeroflow header bolts are made from chrome moly 8740 material for high strength properties. They are coated in a black oxide for protection and long-lasting durability. Each bolt features a compact 12-point head which is ideal for use where space is minimal especially on aftermarket header flanges.
Kit Contains
12 x Bolts
18.95mm Under Head Length
13.40mm Head Diameter
3/8"-16 thread.
12 x Flat Washers
16.50mm Outside Diameter
9.55mm Inside Diameter
2.30mm Thickness
* 8740 Material, Sold as a Pack of 12