... and Non Standard Forging Parts & High Tensile Auto Fastener. High Nuts for U-bolt, Track bolts, Auto bolts.Our company specialized ... Bolt & Nut, Hub Bolt & Nut, Track Pin & Bushing etc, are wide used for Hino, Nissan, Mitsubishi, Isuzu, Daewoo, Volvo, Hyundai, etc ... Plating, Rainbow),With S40Cr material or better material, Factory High Nuts M20x1.50PxAF30xH30 for U-bolts