Stage 8 - 8916 MOPAR 4.7, 5.7, 6.1 Liter Hemi V8 Header Bolt Kit - 8mm 1.25x25mm Bolts 6 Point DHH - Set of 17 pieces Grade 8 bolts will not stretch when hot Duplex nickel finish for a superior look and corrosion resistance Double hex head includes 3/16 inches recessed allen head for easy installation Removable and reusable Can visually inspect; no need to put a wrench on to check tightness