High Visibility yellow allows for easy determination and helps in preventing often fatal wheel off incidents. 21MM CheckMate, Loose Wheel Nut Indicator, PK100 Easily detect loosened lug nuts on commercial and personal vehicles. After proper torque setting, align the CheckMate in one direction.Shipped in bags of 100 pieces.
.(Inner) Stud Extender, Accessory Type Stud Extender, Compatible Manufacturer Model Number NF10, NF98, Material Brass, Color Brass, Diameter 9/16 in, Length 1 1/16 in, Thread Size 9/16 In.