OEM Factory for 4 Bolt Boat Trailer Hub - Mack Hub Bolt 4.5 inch 122mm factory wholesale – JINQIANG Detail:
Product description
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.
Our Hub bolt quality standard
10.9 hub bolt
| 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 |
12.9 hub bolt
| 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 |
FAQ
Q1 what finishing of truck hub bolt?
We have grey phosphated, black phosphated, dacromet, Galvanized
Q2 what is your company’s products?
Our products include truck hub bolt, center bolt, u bolt, spring pin, bracket/clamp, bearing all kind of truck prats.
Q3 what is your delivery time?
If stock good, we will delivery within 10 working days. For a customized order, 30-45 days.
Q4 how many employees of your company?
We have more than 300 employees.
Q5 what is nearest port?
Our port is Xiamen.
Q6 what kind of packing of your products?
It depends on products, usually we have box and carton, plastic box packing.
Q7 are you trading company or manufacturer?
We are professional manufacturer with more than 20 years experiences.
Product detail pictures:
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With our leading technology as well as our spirit of innovation,mutual cooperation, benefits and development, we will build a prosperous future together with your esteemed company for OEM Factory for 4 Bolt Boat Trailer Hub - Mack Hub Bolt 4.5 inch 122mm factory wholesale – JINQIANG , The product will supply to all over the world, such as: Madagascar, Bahamas, Guatemala, Aiming to grow to be by far the most experienced supplier within this sector in Uganda, we keep researching on the creating procedure and raising the high quality of our principal merchandise. Till now, the merchandise list has been updated on a regular basis and attracted customers from around the globe. In depth data can be obtained in our web page and you'll be served with good quality consultant service by our after-sale team. They're about to make it possible for you to get complete acknowledge about our things and make a satisfied negotiation. Small business check out to our factory in Uganda can also be welcome at any time. Hope to obtain your inquiries to get a happy co-operation.
As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!



