BCrane Cams 99098-1 38" Machined Steel Valve Lock, (Set of 32) ReviewbP PP Crane Cams 99098-1 38" Machined Steel Valve Lock, (Set of 32) P7 degree machined steel locksPFor 38 diameter valve stemsPSingle groove design comes with black oxide finishPPackaged with all Crane "Posi-Stop" Titanium retainersPBacked by Crane's 1 year Warranty Policy under normal useP