I dont really understand this questions but a 1981 Camaro has 5 lug wheels.
5 bolts on a 4.75" circle, aka 5 x 4.75" (120.65mm)
12mm x 1.5
The lug nut size for a 240sx with a four lug pattern is 10x1.25. The lug nut size is 12x1,25
5x4.75"
Wheel lug nut pattern? NO.
What is the lug nut pattern of a 1955 Buick Century? What interchanges with it?
6x5.5
5x5
6x5.5
5x115
varies by axle
4x114.3