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. 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 | 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 |
1.How to deliver goods?
A.Deliver by container or by LCL
2.How to pack your goods?
A.Packed by color box and neutral carton
B.Packed by wooden pallets
3.Can you accept L/C payment terms?
A.Can cooperate by TT,.L/C and D/P payment terms
4.What is your main market?
Europe, America, Southeast Aisa, Middle East, Africa ETC.
5. What is the grade of your products?
A.Hardness is 36-39,tensile strength is 1040Mpa
B.Grade is 10.9
6. What is your yearly output?
18000000 PCS for production each year.
7.When did your factory found?
Factory was founded in 1998,with more than 20 years experience
8.How many squares of your factory?
23310 squares