OEM/ODM Manufacturer 5 Bolt Trailer Axle - scania heavy truck wheel bolt – JINQIANG

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continue to improve, to ensure product quality in line with market and customer standard requirements. Our company has a quality assurance system have been established for Truck Suspension Center Bolt, Small Spring Pin, U Bolts For Truck Bodies, Many years of work experience, we have realized the importance of providing good quality products and the best before-sales and after-sales services.

OEM/ODM Manufacturer 5 Bolt Trailer Axle - scania heavy truck wheel bolt – 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.

Manufacturing process of bolts

high-strength bolt heat treatment

High-strength fasteners must be quenched and tempered according to technical requirements. The purpose of heat treatment and tempering is to improve the comprehensive mechanical properties of fasteners to meet the specified tensile strength value and yield ratio of the product.
The heat treatment process has a crucial impact on high-strength fasteners, especially its intrinsic quality. Therefore, in order to produce high-quality high-strength fasteners, advanced heat treatment technology and equipment must be available.

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 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.

Q2. Do you accept the use of our logo?
If you have a large quantity, we absolutely accept OEM.

Q3. 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.

Q4. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge if the samples in stock but do not pay the air cost.

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Our personnel are always inside the spirit of continuous improvement and excellence, and together with the outstanding excellent goods, favorable price and good after-sales services, we try to gain every customer's trust for OEM/ODM Manufacturer 5 Bolt Trailer Axle - scania heavy truck wheel bolt – JINQIANG , The product will supply to all over the world, such as: Japan, Atlanta, Croatia, We focus on providing service for our clients as a key element in strengthening our long-term relationships. Our continual availability of high grade products in combination with our excellent pre-sale and after-sales service ensures strong competitiveness in an increasingly globalized market.

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The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.