The U bolt for leaf spring is our first product after establishment. With nearly 20 years of experience in supplying auto parts in both the domestic and overseas markets, we offer a complete range of U bolt for heavy duty commercial vehicle from Mercedes, Volvo, Scania, BPW, Hino, Nissan, Isuzu, International, Freightliner, and Fruehauf.
Hot or cold forged product is available. To ensure that our product reaches the ISO property class of 10.9 or 12.9, we strictly control all the operation processes, from raw material procurement, production, heat treatment, to surface treatment. Especially, after heat treatment, all U bolts are tested by the correcting equipment to ensure the accuracy of the inside width and the levelness of the entire product, thus maximizing the service life of the product.
If customers have special requirements on product specification, we can make corresponding adjustment. We can also make product in line with the drawings or samples provided by the customers. OEM service is available.
Production Process
1. Common Product
Material Cutting---Chamfering---Straightening---Reducing-- Cylindrical Grinding---Threading---Molding---Punching---Quenching and Tempering---Correction---Electroplating---Assembly
2. Special Product
Material Cutting---Straightening---Reducing---Billet Grinding---Cylindrical Grinding---Threading---Molding--- Punching---Quenching and Tempering---Correction---Electroplating---Assembly
Dimensions | Specification | |
FORM D×B×L×PL (see the above picture) | ISO property class | 10.9, 12.9 |
Material | ASTM 5140, 35CrMo | |
Finishing | Paint baking, galvanizing, phosphating, electrophoresis, Dacromet, ect. | |
Packing | Neutral export carton |
Related Names
Suspension U-bolts | Heavy Truck Bolt | Utility Trailer Parts