KEEPERS 3/8in 10deg -50 thou installed

Crower Jumbo Split-Lock 10 degree Single Groove valve stem Lock or Keepers for 3/8in valve stem, are machined from chromoly steel, heat-treated for maximum strength, and designed with a 10 degree taper. They are twice the strength of conventional 7 degree valve stem keepers and are available in various heights for added flexibility in achieving the correct installed spring height.Note - has a -0.050 in. installed height. 32 pieces, enough to do 16 valves.