OEM Factory for 4 Bolt Boat Trailer Hub - Mack Hub Bolt 4.5 inch 122mm factory wholesale – JINQIANG

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We take pleasure in a really excellent name amongst our shoppers for our exceptional product or service excellent, competitive rate and also the greatest services for Truck Chassis U Bolts, European Trucks Center Bolt, Bolt Center, We never stop improving our technique and high quality to help keep up using the enhancement trend of this industry and meet your gratification effectively. In case you are intrigued in our items, please call us freely.

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.

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Along with the Client-Oriented small business philosophy, a rigorous high-quality handle system, highly developed producing machines and a powerful R&D group, we always supply high-quality products and solutions, fantastic services and aggressive costs 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: Irish, Luxembourg, Singapore, we've got all day online sales to make sure the pre-sale and after-sale service in time. With all these supports, we can serve every customer with quality product and timely shipping with highly responsibility. Being a young growing company, we might not the best, but we are trying our best to be your good partner.

10.9 Truck Hub Bolt