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. Professional level
Selected materials, in strict accordance with industry standards, production contract satisfactory products, to ensure product strength and accuracy!
2. Exquisite craftsmanship
The surface is smooth, the screw teeth are deep, the force is even, the connection is firm, and the rotation will not slip!
3. Non-standard customization
Professionals, factory customization, factory direct sales, non-standard customization, customized drawings can be customized, and the delivery time is controllable!
| 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 about your quality control?
We always test material, the hardness, tensile, salt spray and so to guarantee the quality.
Q2 what is your payment terms?
We can accept TT,L/C,MONEYGRAM,WESTERN UNION and so on.
Q3 can you offer free samples?
If we have stock samples, we can offer free samples, please pay express fee yourself.
Q4 what is the grade of hub bolt?
For truck hub bolt, usually it is 10.9 and 12.9
Q5 do you offer OEM service?
Yes, we can offer OEM service.
Q6 what is your MOQ?
It depends on products, usually hub bolt MOQ 3500PCS,center bolt 2000PCS,u bolt 500pcs and so on.
Q7 what is your capacity of production?
We can produce more than 1500,000pcs bolts every month.