OEM Factory for 4 Bolt Boat Trailer Hub - heavy duty truck wheel bolt factory wholesale – JINQIANG

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With our leading technology also as our spirit of innovation,mutual cooperation, benefits and development, we are going to build a prosperous future jointly with your esteemed company for European Trucks Center Bolt, V Groove Bearing, Spare Wheel Mounting Bracket, Our products enjoy good popularity among our customers. We welcome customers, business associations and friends from all parts of the world to contact us and seek cooperation for mutual benefits.

OEM Factory for 4 Bolt Boat Trailer Hub - heavy duty truck wheel bolt 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 is the surface color?
Black phosphating, gray phosphating, Dacromet, electroplating, etc.

Q2: What is the annual production capacity of the factory?
About a million pcs of bolts.

Q3.What is your lead time？
45-50 days in general. Or please contact us for specific lead time.

Q4.Do you accept OEM order?
Yes, we accept OEM service for Customers.

Q5.What are your terms of delivery?
We can accept FOB,CIF,EXW,C AND F.

Q6.What is the payment way?
T/T,D/P,L/C

Q7.What is the term of payment?
30% deposit advance,70% balance payment before shipment.

Q8. how is your production management and quality control system?
A:There are three testing process to ensure product quality.
B:Products 100% detection
C:The first test: raw materials
D:The second test: semi-finished products
E:The third test: the finished product

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Our aim would be to fulfill our shoppers by offering golden company, very good value and good quality for OEM Factory for 4 Bolt Boat Trailer Hub - heavy duty truck wheel bolt factory wholesale – JINQIANG , The product will supply to all over the world, such as: Gabon, Gabon, Tajikistan, Adhering to the principle of "Enterprising and Truth-Seeking, Preciseness and Unity", with technology as the core, our company continues to innovate, dedicated to providing you with the highest cost-effective solutions and meticulous after-sales service. We firmly believe that: we're outstanding as we have been specialized.

10.9 Truck Wheel Bolt