Hardened Steel Set of 16 - 7 Degree, 5/16", Single Groove Street Locks, None, SpringRetainerKeeper, 16 - 7 Degree, 5/16" Single Grv Locks, Valve Lock, Keeper, Retainer Lock, 10 Degree, 7 Degree, Steel Retainer, 1 Groove, Valve Keeper, Valve Keeper Set, Valve Lock Set, Locks, Engine Valve Spring Retainer Keeper Kit.