are coated 4130 chrome-moly steel-parallel ground, heat-treated and chamfered. Washers are .120'' thick and can be used with both head studs and bolts. Torque accuracy is improved by providing a smooth flat bearing surface. Ensures consistent torque readings. Standard Washers
are coated .110'' thick steel. Heat-treated washers reduce the chance of damaging cylinder head bosses and ensure consistent torque readings.