The WESCO Lash Lock is a two piece valve keeper that incorporates the lash cap. No need to deal with three pieces. These LashLocks are quicker, stronger and easier to install. I have multiple sets of 11/32" 10 degree square lock (WESCO PN 4145) AND 3/8" 7 degree square lock (WESCO PN 4147). These are BRAND NEW still in the original bags from WESCO. Each set includes 8 pair of locks for $160.00. I will split sets if needed. Add $6.00 for USPS priority mail for any quantity.