The pin-type thread insert is a special fastener with threads both inside and outside, and four or two pin keys on the external thread. The pin-type thread insert is inserted into the bottom hole after tapping, and then the four pins are pressed in to achieve a strong fastening effect.
The product is mainly used in aerospace, railway locomotives, vibrating machinery and other products with high requirements for thread strength. The most basic function of the pin-type thread insert is to repair and enhance the internal thread. As a means of thread repair, the pin-type thread insert can quickly and effectively repair the damaged thread. When applied to materials with low strength, the pin-type thread insert can greatly enhance the strength of the threaded hole.
| Specification(Light type) |
Inner diameter B |
Inner thread pitch |
Length L |
Outer diameter A |
Outer thread pitch P |
Installation bottom hole |
Drilling depth |
| M2*0.4-L3-M4*0.7 |
M2 |
0.4 |
3 |
M4 |
0.7 |
3.4 |
4 |
| M2.5*0.45-L3.8-M4.5*0.75 |
M2 |
0.45 |
3.8 |
M4.5 |
0.75 |
3.9 |
5 |
| M3*0.45-L4.25-M5*0.8 |
M3 |
0.5 |
4.25 |
M5 |
0.8 |
4.4 |
5.5 |
| M4*0.7-L5.25-M6*0.75 |
M4 |
0.7 |
5.25 |
M6 |
0.75 |
5.5 |
6.5 |
| M5*0.8-L8-M8*1.25 |
M5 |
0.8 |
8 |
M8 |
1.25 |
6.9 |
9.5 |
| M6*1.0-L10-M12*1.25 |
M6 |
1 |
10 |
M10 |
1.25 |
8.9 |
11.5 |
| M8*1.25-L12-M12*1.25 |
M8 |
1.25 |
12 |
M12 |
1.25 |
10.9 |
13.5 |
| M10*1.5-L14-M14*1.5 |
M10 |
1.5 |
14 |
M14 |
1.5 |
12.80 |
15.5 |
| M10*1.25-L14-M14*1.5 |
M10 |
1.25 |
14 |
M14 |
1.5 |
12.80 |
15.5 |
| M12*1.75-L16-M16*1.5 |
M12 |
1.75 |
16 |
M16 |
1.5 |
14.75 |
17.5 |
| M12*1.5-L16-M16*1.5 |
M12 |
1.5 |
16 |
M16 |
1.5 |
14.75 |
17.5 |
| M12*1.25-L16-M16*1.5 |
M12 |
1.25 |
16 |
M16 |
1.5 |
14.75 |
17.5 |
| Specification(Heavy type) |
Inner diameter B |
Inner thread pitch |
Length L |
Outer diameter A |
Outer thread pitch P |
Installation bottom hole |
Drilling depth |
| M4*0.7-L8-M8*1.25 |
M4 |
0.7 |
8 |
M8 |
1.25 |
6.9 |
9.5 |
| M5*08-L10-M10*1.25 |
M5 |
0.8 |
10 |
M10 |
1.25 |
8.9 |
12.5 |
| M6*1.0-L12-M12*1.25 |
M6 |
1.0 |
12 |
M12 |
1.25 |
10.9 |
14.5 |
| M8*1.25-L14-M14*1.5 |
M8 |
1.25 |
14 |
M14 |
1.5 |
12.8 |
16.5 |
| M8*1.0-L14-M14*1.5 |
M8 |
1 |
14 |
M14 |
1.5 |
12.8 |
16.5 |
| M10*1 5-L16-M16*1.5 |
M10 |
1.5 |
16 |
M16 |
1.5 |
14.75 |
18.5 |
| M10 1.25-L16-M16*1.5 |
M10 |
1.25 |
16 |
M16 |
1.5 |
14.75 |
18.5 |
| M12*1.75-L18-M18*15 |
M12 |
1.75 |
18 |
M18 |
1.5 |
16.75 |
20.5 |
| M12*1.25-L18-M18*1.5 |
M12 |
1.25 |
18 |
M18 |
1.5 |
16.75 |
20.5 |
| M14*2.0-L20-M20*1.5 |
M14 |
2 |
20 |
M20 |
1.5 |
18.75 |
22.5 |
| M14*1.5-L20-M20*1.5 |
M14 |
1.5 |
20 |
M20 |
1.5 |
18.75 |
22.5 |
| M16*2.0-L22-M22*1.5 |
M16 |
2 |
22 |
M22 |
1.5 |
20.70 |
24.5 |
| M16*1.5-L22-M22*1.5 |
M16 |
1.5 |
22 |
M22 |
1.5 |
20.70 |
24.5 |
| M18*1.5-L24-M24*1.5 |
M18 |
1.25 |
24 |
M24 |
1.5 |
22.70 |
26.5 |
| M20*2.5-L30-M30*2.0 |
M20 |
2.2 |
30 |
M30 |
2 |
28.20 |
34.5 |
| M20*1.5-L30-M30*2.0 |
M20 |
1.5 |
30 |
M30 |
2 |
28.20 |
34.5 |
| M22*1.5-L32-M32*2.0 |
M22 |
1.75 |
32 |
M32 |
2 |
30.2 |
36.5 |
| M24*3.0-L33-M33*2.0 |
M24 |
3 |
33 |
M33 |
2 |
31.2 |
37.5 |
| M24*2.0-L33-M33*2.0 |
M24 |
2 |
33 |
M33 |
2 |
31.2 |
37.5 |
1. Quickly repair internal threaded sleeves with stripped threads, collapsed teeth, wear, and disordered teeth.
2. The installation of the pin-type thread insert is simple and fast. The pin-type thread insert can be installed in just one step.
3. Installing the pin-type thread insert in the internal threaded hole has the function of enhancing the strength of the threaded hole, and can improve the anti-vibration and anti-pulling functions of the threaded hole.
4. The pin-type thread insert has the functions of wear resistance, heat resistance, anti-oxidation, and anti-rust, improving the quality of mechanical products.
Xinxiang Jinbeike Machinery Co., Ltd. currently has more than 300 cold rolling mills and fully automatic winding machines, with a monthly production capacity of 80 million pieces. It strictly follows the company's quality control standards to ensure the qualification and stability of product quality. In addition, it is equipped with inspection equipment such as vibration tables, cleanliness testers, optical sorters, and torque testers to meet the needs of different customers. From the entry of wire rods - cold rolling - winding - inspection - follow-up - packaging - delivery, the whole process is recorded throughout. Each process can be traced back to the process and the person in charge. Samples are left in the factory to ensure that customers' feedback can be responded to and processed quickly and efficiently.
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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