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: Do you have the right to export independently?
We have independent export rights.
Q2: What's the delivery time?
It takes 5-7 days if there is stock, but takes 30-45 days if there is no stock.
Q3: What's the MOQ?
3500pcs each products.
Q4: Where is your company?
Located in Rongqiao Development Zone, Nan'an City, Quanzhou City, Fujian Province, China.
Q5: Can you offer price list?
We can offer all parts which we handing brands, as the price is fluctuating frequently, please send us detailed inquiry with parts number, photo and estimated unit order quantity, we will offer the best price for you.
Q6: Can you offer the products catalog?
We can offer all kinds of our products’ catalog in E-book.