8 Year Exporter Bolt On Trailer Spindle And Hub – hub bolt for bpw 03.296.13.090 – 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. How do you guarantee quality?
JQ practices the worker’s self-inspection and routing inspection on a regular basis during production, strict sampling before packaging and the delivery after compliance. Each batch of products is accompanied by Inspection Certificate from JQ and raw materials test report from the steel factory.
Q2. What is your MOQ for processing? Any mould fee? Is the mould fee refunded?
MOQ for fasteners: 3500 PCS. to the different parts,charge mould fee, which will be refunded when reaching a certain quantity, more fully described in our quotation.
Q3. Do you accept the use of our logo?
If you have a large quantity, we absolutely accept OEM.
Q4. Are you trading company or manufacturer ?
A: We are factory.
B. We produce products in house to ensure the quality. But sometimes we can help on local purchase for your extra convenience.
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Our mission should be to turn out to be an innovative supplier of high-tech digital and communication devices by furnishing benefit added design and style, world-class manufacturing, and repair capabilities for 8 Year Exporter Bolt On Trailer Spindle And Hub – hub bolt for bpw 03.296.13.090 – JINQIANG , The product will supply to all over the world, such as: Puerto Rico, Spain, UK, Based on our guiding principle of quality is the key to development, we continually strive to exceed our customers' expectations. As such, we sincerely invite all interested companies to contact us for future cooperation, We welcome old and new customers to hold hands together for exploring and developing; For more information, be sure to feel free to contact us. Thanks. Advanced equipment, strict quality control, customer-orientation service, initiative summary and improvement of defects and extensive industry experience enable us to guarantee more customer satisfaction and reputation which, in return, brings us more orders and benefits. If you are interested in any of our merchandise, make sure you feel free to contact us. Inquiry or visit to our company are warmly welcome. We sincerely hope to start a win-win and friendly partnership with you. You can see more details in our website.

The goods we received and the sample sales staff display to us have the same quality, it is really a creditable manufacturer.
