GM LS Header Bolts M8 x 1.25mm, 1.181" (30mm) UHL - Black Finish 12 Point Head, 8740 Material, Sold as a Pack of 12

When installing aftermarketexhaust 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 madefrom chrome moly 8740 materialfor 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 minimalespecially on aftermarket header flanges.