... Non Standard Forging Parts & High Tensile Auto Fastener. Our wheel bolt covering Hino, Mitsubishi Fuso, Benz, Volvo, Nissan, Suzuki, etc. Machanism ... psi.Nuts:10 Class, fully hardened and tempered to match bolt strengthWe also produce 12.9 class high tensile fasteners by ... in black oxide, phosphate , eletrophoresis and so on. Manufactory Auto bolt & Nut for MITSUBISHI RH