OEM Customized Trailer Hub Lug Bolts - High tensile 12.9 hub 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
	
1.What is your main products?
A.We are specialized in wheel bolts and nuts, u bolts, center bolt and spring pin etc.
B.We are manufacturer specialized in all kinds of auto parts
2.Where is your factory?
A.Our factory is located in rongqiao industrial  area, liucheng street, nana’an, quanzhou city, fujian province in china
3.What is your MOQ?
A.For wheel bolts and nuts,need 3500 pcs per item
B.U bolt 300 pcs
C.Center bolt 1000 pcs
4.How is your quality?
A.10.9 GRADE
B.high quality
5.What is the finishing of your products?
A.BLACK/GREY PHOSPHATE
B.ZINC COATING
6.What is your advantage of your factory?
A.More than 20 years professional experience
B.Strong technology stuy team
C.Deliver to more than 50 countries
Product detail pictures:
              Related Product Guide:
To constantly improve the management system by virtue of the rule of sincerely, good faith and quality are the base of enterprise development, we widely absorb the essence of related products internationally, and constantly develop new products to meet the demands of customers for OEM Customized Trailer Hub Lug Bolts - High tensile 12.9 hub bolt factory wholesale – JINQIANG , The product will supply to all over the world, such as: French, Iran, Algeria, we are sincerely hope to establish one good long term business relationship with your esteemed company thought this opportunity, based on equal, mutual beneficial and win win business from now till the future.
The company leader recept us warmly, through a meticulous and thorough discussion, we signed a purchase order. Hope to cooperate smoothly
                




