The plating of common nut products is 1 to 2 coatsEven the nuts used by automobile manufacturers have a 2-3 layer coating.The thickness of the plating layer greatly affects the quality and durability of the nuts.It is a very important and cost effective part of the nut. Auto-Ace non-marking nut is coated with 4 layers of platingThe plating layer is about 2.5 times thicker than other nut products! Four coats are the best of plating.Extreme quality and durability.The high quality of this product is so easy to see that it will not go back after you use it. Compatible with all Toyota vehicles with steel wheels.Compatible with bB models (models CBA-QNC20/21 and later since they are 18 years old), and genuine Passo aluminum wheels. Cannot be used with genuine aluminum wheels.Please purchase the flat seat type nut we sell.

Taper Seat Taper Angle: 60°; HEX (Wrench Size) 0.9 inches (21 mm); Total Height: 1.0 inches (26 mm); (B) Projection Height when mounted: 0.9 inches (22 mm); Wheel Contact Shape: Taper Seat 60°; Compatible Bolt Standards: M12 Pitch 1.5 (*B) is the height from the exposed point of the nut taper seat area to the top when the wheel attached.