Made from 6061-T6 low pressure Aluminium die casting. The studs are 40Cr steel with a strength of 10.9 grade, SGS certified. Lug nuts are made from 35# Steel with a strength of 6-8 grade.
Anti-Rust level is 24-36 hours NSS(Neutral Salt Spray) test.
Machining precision: Circularity: 0.02mm, Perpendicularity: 0.03mm, Parallelism: 0.03mm, Concentricity: 0.04mm, PCD true position: 0.02mm
The TORQEN S spacers are hard anodising surface treated, in black.