Hub bolts are high-strength bolts that connect vehicles to the wheels. The connection location is the hub unit bearing of the wheel! Generally, class 10.9 is used for mini-medium vehicles, class 12.9 is used for large-sized vehicles! The structure of the hub bolt is generally a knurled key file and a threaded file! And a hat head! Most of the T-shaped head wheel bolts are above 8.8 grade, which bears the large torsion connection between the car wheel and the axle! Most of the double-headed wheel bolts are above grade 4.8, which bear the lighter torsion connection between the outer wheel hub shell and the tire.
| hardness | 36-38HRC |
| tensile strength | ≥ 1140MPa |
| Ultimate Tensile Load | ≥ 346000N |
| Chemical Composition | C:0.37-0.44 Si:0.17-0.37 Mn:0.50-0.80 Cr:0.80-1.10 |
| hardness | 39-42HRC |
| tensile strength | ≥ 1320MPa |
| Ultimate Tensile Load | ≥406000N |
| Chemical Composition | C:0.32-0.40 Si:0.17-0.37 Mn:0.40-0.70 Cr:0.15-0.25 |
Q1. Is your factory able to design our own package and help us in market planning?
Our factory has more than 20 years experience to deal with package box with customers' own logo.
We have a design team and a marketing plan design Team to service our customers for this
Q2. Can you help to ship the goods?
YES. We can help to ship the goods through customer forwarder or our forwarder.
Q3. What are our major market?
Our main markets are Middle East, Africa, South America, Southeast Asia , Russia,ect.
Q4. Can you provide customization service?
Yes, We are able to conduct processing in accordance with customers’ engineering drawings, samples, specifications and OEM projects are welcome .
Q5. What types of customized parts do you provide?
We can customized truck suspension parts such as Hub Bolts, Center Bolts, Truck Bearings, Casting, Brackets, Spring Pins and other similar products
Q6. Does every customized part need mould fee?
Not all customized parts cost mould fee. For example, It depends on the sample costs.