Product Description
Self - Tapping Steel Wire Inserts, crafted from high - strength steel wires through advanced manufacturing processes, are innovative fastening elements. Their helical structure enables them to create threads directly into various base materials during installation. This unique self - tapping feature simplifies assembly procedures significantly, eliminating the need for pre - drilled and pre - tapped holes. In the automotive industry, they are extensively used for connecting engine components, ensuring reliable and durable connections even under high - stress and high - vibration conditions.
Detailed Photos






Product Parameters
302 type self-tapping screw sleeve |
Specification |
Inner diameter (B) |
Inter-lingual distance of teeth |
length(L) |
Outer diameter(A) |
Gum-to-tooth distance(P) |
Installation bottom hole |
Drilling depth |
M2*0.4-L6-M4.5*0.5 |
M2 |
0.4 |
6 |
M4.5 |
0.5 |
4.2-4.3 |
8 |
M2.5*0.45-L6-M4.5*0.5 |
M2.5 |
0.45 |
6 |
M4.5 |
0.5 |
4.2-4.3 |
8 |
M3*0.5-L6-M5*0.5. |
M3 |
0.5 |
6 |
M5 |
0.5 |
4.7-4.8 |
8 |
M3.5*0.6-L8-M6*0.75 |
M3.5 |
0.6 |
8 |
M6 |
0.75 |
5.6-5.7 |
10 |
M4*0.7-L8-M6.5*0.75 |
M4 |
0.7 |
8 |
M6.5 |
0.75 |
6.1-6.2 |
10 |
M5*0.8-L10-M8*1.0 |
M5 |
0.8 |
10 |
M8 |
1 |
7.5-7.6 |
13 |
M6*1.0-L12-M9*1.0 |
M6 |
1.0 |
12 |
M9 |
1 |
8.5-8.6 |
15 |
M6*1.0-L14-M10*1.5 |
M6 |
1.0 |
14 |
M10 |
1.5 |
9.2-9.4 |
17 |
M8*1.25-L15-M12-1.5 |
M8 |
1.25 |
15 |
M12 |
1.5 |
11.2-11.4 |
18 |
M10*1.5-L18-M14*1.5 |
M10 |
1.5 |
18 |
M14 |
1.5 |
13.2-13.4 |
22 |
M12*1.75-L22-M16*1.5 |
M12 |
1.75 |
22 |
M16 |
1.5 |
15.2-15.4 |
26 |
M14*2.0-L24-M18*1.5 |
M14 |
2 |
24 |
M18 |
1.5 |
17.2-17.4 |
28 |
M16*2.0-L22-M20*1.5 |
M16 |
2 |
22 |
M20 |
1.5 |
19.2-19.4 |
26 |
M18*2.5-L24-M22*1.5 |
M18 |
2.5 |
24 |
M22 |
1.5 |
21.2-21.4 |
28 |
M20*2.5-L27-M26*1.5 |
M20 |
2.5 |
27 |
M26 |
1.5 |
25.2-25.4 |
32 |
M22*2.5-L30-M26*1.5 |
M22 |
2.5 |
30 |
M26 |
1.5 |
25.2-25.4 |
36 |
M24*30-L30-M30*1.5 |
M24 |
3.0 |
30 |
M30 |
1.5 |
29.2-29.4 |
36 |
Company Profile
Xinxiang Jinbeike Machinery Co., Ltd. is located in Xinxiang City, Henan Province, a famous manufacturing city in China. Jinbeike Machinery is an enterprise integrating automated production and sales. The products include: wire thread inserts, tailless thread inserts, self-tapping thread inserts, pin-type thread inserts, etc., as well as related supporting installation tools. Since its establishment, Jinbeike Machinery Co., Ltd. has always adhered to the business philosophy of quality first and customer-oriented, and has received high praise from people from all walks of life. Jinbeike Machinery Co., Ltd. is willing to join hands with you to create a brilliant tomorrow.





FAQ
Q: Do you have stock?
A: Yes, most items are in stock and ready to ship.
Q:How long is your delivery time?
A: It takes 1 day for general stock items, 10-15 days for customized items or quantity over 50,000 pcs.
Q: Can you provide samples? Is it free or extra?
A: Yes, we can provide free samples without paying the shipping cost.
Q. How about the payment terms?
A: Usually 100% T/T in advance before shipment or mass production, we can also consult with you according to your requirements.
Q: What are your advantages?
A: Competitive price, fast delivery and high quality. Responsible staff. Good quality products with smooth surface and long life performance.