Self tapping thread insert
M5 M6 M8 Self - Tapping Thread Insert Type Of 307
Introduce of Self tapping thread insert
The self-tapping thread insert installation does not need to be threaded in advance. It can be directly screwed into the specific hole reserved for the base material with the installation tool. The same screw as the original can also be used for the female thread of the broken tooth. It is economical and beautiful. For new products It can also increase the thread strength. Self-tapping thread inserts (self-tapping braces) are now widely used in the automotive industry, rail car industry, shipbuilding industry, household appliances, construction machinery, office machinery, electronic products, engineering plastics, high-end modular furniture, aluminum die-casting and other industries. The classification of self-tapping screws generally includes iron teeth. Wooden teeth F refers to the head type, which is generally countersunk. A generally refers to the type A teeth, which is also pointed tail teeth, and B generally refers to the B type teeth, which is flat tail teeth.
Use of Self tapping thread insert
The self-tapping thread insert is a self-tapping threaded insert with a slot or a hole, and the slotted self-tapping thread insert is recommended for most applications. On some materials, this thread insert provides the perfect specific thread lock function. If it still does not work, it is generally recommended to use the 307/308 type. The 307/308 type has made a major breakthrough in the difficulty of material cutting. This product not only has a thick wall, but also has three circular holes with cutting ability scattered on the wall. The 307/308 product is especially suitable for the case where the material thickness is not too wide.
307 series Self tapping thread insert
Product name |
307 series Self tapping thread insert |
Material |
Steel Zn/SUS303/Customized |
Surface color |
Galvanized/Natural color |
Galvanizing: yellow/blue/Colored | |
Thread type |
Metric,Inc UNC, UNF |
Model Number |
M2-M24/Customized |
Function |
Assembly, threaded connection/fastening/conversion |
Reliability test |
Mechanical dimentions, hardness test. salt spray endurance test |
Metric Size Type 307/308 self-tapping threaded inserts | |||||
|
Internal thread |
External thread
|
Length |
Guideline values for receiving hole diameter |
Minimum borehole depth for blind holes |
|
A |
E |
P |
B |
L |
T |
M 3 |
5 |
0.5 |
4 |
4.7 to 4.8 |
6 |
M3 |
5 |
0.5 |
6 |
4.7 to 4.8 |
8 |
M3.5 |
6 |
0.5 |
5 |
5.6 to 5.7 |
7 |
M 3.5 |
6 |
0.75 |
8 |
5.6 to 5.7 |
10 |
M4 |
6.5 |
0.75 |
6 |
6.1 to 6.2 |
8 |
M 4 |
6.5 |
1 |
8 |
6.1 to 6.2 |
10 |
M5 |
8 |
0.6 |
7 |
7.6 to 7.7 |
9 |
M5 |
8 |
0.6 |
10 |
7.6 to 7.7 |
13 |
M6 |
10 |
0.8 |
8 |
9.5 to 9.6 |
10 |
M6 |
10 |
0.8 |
12 |
9.5 to 9.6 |
15 |
M8 |
12 |
0.8 |
9 |
11.3 to11.5 |
11 |
M8 |
12 |
0.8 |
14 |
11.3 to11.5 |
17 |
M10 |
14 |
1 |
10 |
13.3 to13.5 |
13 |
M10 |
14 |
1 |
18 |
13.3 to13.5 |
22 |
M12 |
16 |
1.25 |
12 |
15.2 to15.4 |
15 |
M12 |
16 |
1.25 |
22 |
15.2 to15.4 |
26 |
M14 |
18 |
1.5 |
14 |
17.2 to17.4 |
17 |
M14 |
18 |
1.5 |
24 |
17.2 to17.4 |
28 |
M16 |
20 |
1.5 |
14 |
19.2 to19.4 |
17 |
M16 |
20 |
1.5 |
24 |
19.2 to19.4 |
28 |
M18 |
22 |
1.75 |
18 |
21.2 to21.4 |
21 |
M18 |
22 |
1.75 |
24 |
21.2 to21.4 |
28 |
M20 |
26 |
2 |
27 |
25.2 to25.4 |
31 |
M22 |
26 |
2 |
30 |
25.2 to25.4 |
34 |
M24 |
30 |
2 |
30 |
29.2 to29.4 |
34 |
Example for finding the article number:Self-tapping threaded insert FH to Works Standard 302 1 with internal thread A = M5 made of case-hardened , zinc plated and blue passivated steel : 307.000.050.110
Tolerance:ISO 2768-m
Thread:
Internal thread A: as per ISO 6H
External thread E: as per FH standard
Materials
Article no. (fourth group of digits)... ... ...110 |
Article no. (fourth group of digits)... ... ...110 |
Case-hardened steel, Zinc-nickel plated, transparent passivated |
Article no. (fourth group of digits)... ... ...143 |
Case-hardened steel , Zinc plated , yellow chromated |
Article no. (fourth group of digits)... ... ...160
|
Stainless steel 14301 |
Article no. (fourth group of digits)... ... ...400 |
Stainless steel 14305 |
Article no. (fourth group of digits)... ... ...500 |
Stainless steel 14401 |
Article no. (fourth group of digits)... ... ...600 |
Ti 3.7035 |
Article no. (fourth group of digits)... ... ...700 |
|
Brass
|
Article no. (fourth group of digits)... ... ...800
|
|
|
Some material pictures show
