English
Brand Name: KernalCoil Thread Insert
Material: Stainless Steel 304
Application: Widely used in aerospace, automotive, machinery and other industries
Certificate: ISO 9001:2015, IATF 16949, SGS
Place of Origin: Shenzhen, China
Length Specification: Generally expressed by the nominal length. Common ones include 1D, 1.5D, 2D, 2.5D, 3D, etc., the D represents the nominal diameter
Hardness: With tensile and shear strength, it can withstand axial tension and torque to ensure the reliability of thread connections
Wear Resistance: Resistant to friction and wear between threads, prolonging the life of threads, especially in applications with frequent disassembly or high friction
Vibration Resistance: Absorbs vibration energy, reduces thread loosening and damage caused by vibration, improves connection stability, and is suitable for equipment and machinery in vibrating environments
Detail
Wire thread insert is an insert developed to protect the threaded holes of non-ferrous metals for threaded connections. Screwed and fastened in the threaded hole of one of the connected parts to form a standard internal thread, the bolt (or screw) and then screwed into it. Cold rolled stainless steel wire manufactured into a spiral inside and outside the concentric body threaded coils, cross-section is atrophic, shape similar to a spiral spring, with high hardness and good surface roughness accuracy. Installation of steel wire nuts using special taps and installation tools tapping and installation, screw set in the screw hole or nut, there is to reduce the uneven force on the threaded teeth and the role of shock vibration resistance, you can improve the fatigue strength of the threads to reduce the wear and corrosion resistance of the threads, to extend the life of the screw hole.
Most commonly used, general-purpose material
Heat resistance: 425℃ for a short time, 315℃ for a long time
Minimum tensile strength at room temperature: 1400Mpa
Hardness: RHC43-50
Corrosion resistance: Medium
Magnetic permeability: 2-10 G/0(depending on material specifications)
Scope of use and examples: standard use for all materials with strength class greater than 8.8: general light structures, such as aluminum, magnesium, zinc and its alloy products, cast iron, plastic, bakelite, etc.
Application 1: Product assembly
By assembling the wire thread insert into the screw hole of aluminum alloy and other materials, it can form a high strength, wear-resistant, high-precision standard internal thread.
Typical applications: high-voltage switchgear, microwave communications, automotive parts, air separation equipment, radiators and so on.
Application 2: Thread Repair
In the event of a threading error or repair of a damaged internal threaded hole, the use of a wire insert as a means of repair allows for economical and effective repair of the threaded hole.
Typical applications: Repair of threaded holes in parts after slippage, e.g., repair of threaded holes in injection molding machine templates.
Application 3: Thread Interchange
Convert metric ←→ UNC/UNF thread holes by using a wire insert, which is convenient and fast.
Typical applications: Imported equipment or machinery with imperial threads need to be converted to metric threads due to spare parts supply problems.
|
Thread Specification |
Installed Length |
Installed Length |
Number of Turns before Installation |
Outer Diameter before Installation |
Drill Diameter do |
|
M1.6*0.35 |
1d |
1.6 |
3.1 |
2.1-2.3 |
1.6 |
|
1.5d |
2.4 |
4.5 |
|||
|
2d |
3.2 |
6.2 |
|||
|
M2*0.4 |
1d |
2.0 |
3.2 |
2.5-2.8 |
2.1 |
|
1.5d |
3.0 |
5.3 |
|||
|
2d |
4.0 |
7.4 |
|||
|
2.5d |
5.0 |
9.5 |
|||
|
3d |
6.0 |
11.6 |
|||
|
M2.5*0.45 |
1d |
2.5 |
3.6 |
3.2-3.5 |
2.6 |
|
1.5d |
3.8 |
5.9 |
|||
|
2d |
5.0 |
8.2 |
|||
|
2.5d |
6.3 |
10.5 |
|||
|
3d |
7.5 |
12.8 |
|||
|
M3*0.5 |
1d |
3.0 |
4.2 |
3.8-4 |
3.1 |
|
1.5d |
4.5 |
6.8 |
|||
|
2d |
6.0 |
9.4 |
|||
|
2.5d |
7.5 |
12 |
|||
|
3d |
9.0 |
14.6 |
|||
|
M3.5*0.6 |
1d |
3.5 |
4 |
4.5-4.8 |
3.7 |
|
1.5d |
5.3 |
6.4 |
|||
|
2d |
7 |
8.9 |
|||
|
2.5d |
8.8 |
11.4 |
|||
|
3d |
10.5 |
13.9 |
|||
|
M4*0.7 |
1d |
4.0 |
4 |
5.05-5.3 |
4.2 |
|
1.5d |
6.0 |
6.6 |
|||
|
2d |
8.0 |
9.1 |
|||
|
2.5d |
10.0 |
11.7 |
|||
|
3d |
12.0 |
14.2 |
|||
|
M5*0.8 |
1d |
5 |
4.4 |
6.25-6.6 |
5.2 |
|
1.5d |
7.5 |
7.1 |
|||
|
2d |
10 |
9.9 |
|||
|
2.5d |
12.5 |
12.6 |
|||
|
3d |
15 |
15.3 |
|||
|
M6*1.0 |
1d |
6.0 |
4.3 |
7.4-7.9 |
6.3 |
|
1.5d |
9.0 |
6.9 |
|||
|
2d |
12.0 |
9.6 |
|||
|
2.5d |
15.0 |
12.2 |
|||
|
3d |
18.0 |
14.9 |
|||
|
M7*1.0 |
1d |
7 |
5.2 |
8.6-8.9 |
7.3 |
|
1.5d |
10.5 |
8.3 |
|||
|
2d |
14 |
11.5 |
|||
|
2.5d |
17.5 |
14.6 |
|||
|
M8*1.25 |
1d |
8.0 |
4.8 |
9.8-10.1 |
8.3 |
|
1.5d |
12.0 |
7.7 |
|||
|
2d |
16.0 |
10.6 |
|||
|
2.5d |
20.0 |
13.5 |
|||
|
3d |
24.0 |
16.5 |
|||
|
M8*1.0 |
1d |
8 |
6 |
9.8-10.1 |
8.3 |
|
1.5d |
12 |
9.6 |
|||
|
2d |
16 |
13.1 |
|||
|
2.5d |
20 |
16.7 |
|||
|
M10*1.5 |
1d |
10.0 |
5.0 |
11.95-12.5 |
10.4 |
|
1.5d |
15.0 |
8.1 |
|||
|
2d |
20.0 |
11.2 |
|||
|
2.5d |
25.0 |
14.2 |
|||
|
3d |
30.0 |
17.3 |
|||
|
M10*1.25 |
1d |
10 |
6.1 |
12.0-12.5 |
10.3 |
|
1.5d |
15 |
9.7 |
|||
|
2d |
20 |
13.3 |
|||
|
2.5d |
25 |
16.9 |
|||
|
M10*1.0 |
1d |
10.0 |
7.7 |
12.0-12.5 |
10.3 |
|
1.5d |
15.0 |
12.1 |
|||
|
2d |
20.0 |
16.5 |
|||
|
2.5d |
25.0 |
20.8 |