The wire thread insert is a new type of internal thread fastener. It is a helical coil precisely processed from high-strength, high-precision, and smooth-surfaced cold-rolled rhombic stainless steel wire, and is a concentric body of high-precision internal and external threads. After the wire thread insert is installed, a high-precision internal thread that conforms to international standards is formed, and its various performances are superior to the internal thread formed directly by tapping.
After the wire thread insert is installed, the tolerance of the threaded hole depends on the manufacturing tolerance of the wire thread insert profile and the tolerance zone of the threaded hole for installing the wire thread insert. The threaded tolerance of the installation hole mainly depends on the tapping accuracy of the installation hole for the wire thread insert. Usually, it forms a 6H grade, and when the accuracy is high, it can reach a tolerance zone of 5H or 4H grade. The user of the wire thread insert can select a special tap, tapping method (manual tapping, machine tapping), and lubrication method according to the required tolerance zone to ensure that the accuracy and any usage requirements you require are met.
| |
Number of coil turns of the thread insert |
|
|
| Specification |
1D |
1.5D |
2D |
2.5D |
3D |
Outer diameter before installation |
Drill bit diameter |
| St1.6×0.35 |
3.1 |
4.5 |
6.2 |
|
|
2.1~2.3 |
1.6 |
| St2×0.4 |
3.2 |
5.3 |
7.4 |
9.5 |
11.6 |
2.5~2.8 |
2.1 |
| St2.5×0.45 |
3.6 |
5.9 |
8.2 |
10.5 |
12.8 |
3.2~3.5 |
2.6 |
| St3×0.5 |
4.2 |
6.8 |
9.4 |
12 |
14.6 |
3.7~4.0 |
3.1 |
| St4×0.7 |
4 |
6.6 |
9.1 |
11.7 |
14.2 |
5.0~5.3 |
4.2 |
| St5×0.8 |
4.4 |
7.1 |
9.9 |
12.6 |
15.3 |
6.3~6.6 |
5.2 |
| St6×1.0 |
4.3 |
6.9 |
9.6 |
12.2 |
14.9 |
7.5~7.9 |
6.3 |
| St8×1.25 |
4.8 |
7.7 |
10.6 |
13.5 |
16.5 |
9.8~10.1 |
8.3 |
| St10×1.5 |
5 |
8.1 |
11.2 |
14.2 |
17.3 |
12~12.5 |
10.4 |
| St12×1.75 |
5.3 |
8.4 |
11.6 |
14.8 |
18 |
14.3~14.8 |
12.4 |
| St14×2 |
5.4 |
8.7 |
11.9 |
15.2 |
18.40 |
16.7~17.2 |
14.5 |
| St16×2 |
6.3 |
10.00 |
13.7 |
17.5 |
21.2 |
18.8~19.4 |
16.5 |
Xinxiang Jinbeike Machinery Co., Ltd. was established in 2017. The company is located in Xinxiang, Henan Province, a famous manufacturing city. It is close to National Highway 107 and Beijing-Hong Kong-Macao Expressway, with convenient transportation. The factory covers an area of over 10,000 square meters, and the warehouse is 3,000 square meters. It specializes in the production of wire thread inserts, tailless thread inserts, self-tapping thread inserts, pin-type thread inserts, colored thread inserts, etc., as well as supporting installation tools. The inventory is over 1 million pieces for a long time. The products are widely used in aerospace, new energy vehicles, high-speed rail, medical equipment, microelectronics, communication equipment, power equipment, etc. The company has advanced inspection and testing equipment. We look forward to your cooperation and working together.
Q: Are you trading company or manufacturer?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
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