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. Specifications and standards: Strictly control the production standards, so that the error is controlled within the acceptable range, and the force is uniform
2. Various specifications: various product specifications, source factory, quality assurance, welcome to place an order!
3. Production process: carefully made, strictly selected steel and carefully forged, the surface is smooth with few burrs
1. 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!
2. Quality control
ISO9001 certified manufacturer, quality assurance, advanced testing equipment, strict testing of products, guarantee product standards, controllable throughout the process!
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 | 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: How much space does your factory occupy?
It’s 23310 square meters.
Q2: What kind of materials are there?
40Cr 10.9,35CrMo 12.9.
Q3: What is the surface color?
Black phosphating, gray phosphating, Dacromet, electroplating, etc.
Q4: What is the annual production capacity of the factory?
About a million pcs of bolts.
Q5.What is your lead time？
45-50 days in general. Or please contact us for specific lead time.
Q6.Do you accept OEM order?
Yes, we accept OEM service for Customers.