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.
1. Strict production: use raw materials that meet national standards, and strictly produce in line with industry demand standards
2. Excellent performance: many years of experience in the industry, the surface of the product is smooth, without burrs, and the force is uniform
3. The thread is clear: the product thread is clear, the screw teeth are neat, and the use is not easy to slip
| 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 what kind of packing of your products?
It depends on products, usually we have box and carton, plastic box packing.
Q2 are you trading company or manufacturer?
We are professional manufacturer with more than 20 years experiences.
Q3 what about your quality control?
We always test material, the hardness, tensile, salt spray and so to guarantee the quality.
Q4 what is your payment terms?
We can accept TT,L/C,MONEYGRAM,WESTERN UNION and so on.
Q5 can I visit your factory?
Yes, sincerely welcome to visit our factory anytime.
Q6 what is the grade of hub bolt?
For truck hub bolt, usually it is 10.9 and 12.9