Free sample for Wheel Hub Bolt - Heat treatment NISSAN REAR 37 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.
Cold heading forming of high-strength bolts
Usually the bolt head is formed by cold heading plastic processing. The cold heading forming process includes cutting and forming, single-station single-click, double-click cold heading and multi-station automatic cold heading. An automatic cold heading machine performs multi-station processes such as stamping, heading forging, extrusion and diameter reduction in several forming dies.
(1) Use a semi-closed cutting tool to cut the blank, the easiest way is to use a sleeve type cutting tool.
(2) During the transfer of short-sized blanks from the previous station to the next forming station, the fasteners with complex structures are processed to improve the accuracy of the parts.
(3) Each forming station should be equipped with a punch return device, and the die should be equipped with a sleeve-type ejector device.
(4) The structure of the main slider guide rail and process components can ensure the positioning accuracy of the punch and the die during the effective use period.
(5) The terminal limit switch must be installed on the baffle that controls the material selection, and attention must be paid to the control of the upsetting force.
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 delivery time?
If stock good, we will delivery within 10 working days. For a customized order, 30-45 days.
Q2 how many employees of your company?
We have more than 300 employees.
Q3 what is nearest port?
Our port is Xiamen.
Q4 what kind of packing of your products?
It depends on products, usually we have box and carton, plastic box packing.
Q5 are you trading company or manufacturer?
We are professional manufacturer with more than 20 years experiences.
Q6 what about your quality control?
We always test material, the hardness, tensile, salt spray and so to guarantee the quality.
Q7 what is your payment terms?
We can accept TT,L/C,MONEYGRAM,WESTERN UNION and so on.
Q8 can you offer free samples?
If we have stock samples, we can offer free samples, please pay express fee yourself.
Product detail pictures:
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Sticking for the basic principle of "Super Top quality, Satisfactory service" ,We've been striving to be an excellent business enterprise partner of you for Free sample for Wheel Hub Bolt - Heat treatment NISSAN REAR 37 Wheel Bolt – JINQIANG , The product will supply to all over the world, such as: Portland, Latvia, Canberra, Wide selection and fast delivery to suit your needs! Our philosophy: Good quality, great service, keep improving. We've been looking forward that more and more oversea friends join in our family for further development near the future!
By Chris from New Delhi - 2017.11.20 15:58
The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.
By Katherine from United States - 2017.06.29 18:55