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

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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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We normally think and practice corresponding towards the change of circumstance, and grow up. We aim at the achievement of a richer mind and body plus the living 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: Denmark, Portland, Latvia, We'd like to invite customers from abroad to discuss business with us. We can provide our clients with high quality products and excellent service. We are sure that we will have good cooperative relationships and make a brilliant future for both parties.

10.9 Truck Wheel Bolt