Secure your 1963-1967,1968-1979 Corvette Rear End Cover properly with this 16 piecereplacement Bolt Kit. Includes 8 Grade 5 Bolts and 8 Lock Washers in the correct size to keep your rear end cover snug and leak free! Bolts should be tightened in an alternating pattern progressively to a torque specification of 50 to 55 lb/ft.