... ,000 psi. Nuts:M12-M33 ,10 Class, Hardness: HRC26-36, Products:Our products including Wheel Bolt & Nut, Truck Bolt & Nut, Hub Bolt ... components according to clients’ drawings or samples.Machanism Capability: Bolts:10.9/12.9 Class, minimum tensile strength 170,000 psi ... .Nuts:M12-M33 ,10 Class, Hardness: HRC26-36,fully hardened and tempered to match ...