4pcs 1 key set Titanium Locking Lug Nut 12x1.5 12x1.25 1/2-20 60 Acorn

4 Z-lags + 1 Z-Key (HEX17)
GR5 6AL4V Material 
60-degree conical seat
M12x1.5
22mm outside diameter
35mm long
17mm HEX
34g weight