M12 x 1.75 Self-tapping steel insert with Three Bores is designed for creating robust, high-strength, wear-resistant, and vibration-resistant screw connections in materials with low shear strength. These materials include aluminum and aluminum alloys, brass, bronze, cast iron, duro, and thermoplastics.
These threaded inserts feature a tapered bottom and three cutting bores, allowing them to cut their own threads when inserted into a receiver hole. This ensures a completely secure and stable anchoring in the host material.
The threaded inserts with cutting bores are specifically engineered for materials that are challenging to machine. The thicker wall design enables them to withstand greater cutting forces, which are evenly distributed across the three cutting bores.
| Drawing No. |
A Internal thread |
E External thread |
P Pitch |
L Length |
SW Hexagonal socket |
D Minimum borehole depth for blind holes |
| L 307…01 |
M3 |
5 |
0.6 |
4 |
– |
6 |
| L 308…01 |
6 |
8 |
| L 307…02 |
M3.5 |
6 |
0.8 |
5 |
– |
7 |
| L 308…02 |
8 |
10 |
| L 307…03 |
M4 |
6.5 |
0.8 |
6 |
3.2 |
8 |
| L 308…03 |
8 |
10 |
| L 307…04 |
M5 |
8 |
1 |
7 |
4.1 |
9 |
| L 308.. .04 |
10 |
13 |
| L 307…05 |
M6 |
10 |
1.25 |
8 |
4.9 |
10 |
| L 308…05 |
12 |
15 |
| L 307…06 |
M8 |
12 |
1.5 |
9 |
6.6 |
11 |
| L 308…06 |
14 |
17 |
| L 307…07 |
M10 |
14 |
1.5 |
10 |
8.3 |
13 |
| L 308…07 |
18 |
22 |
| L .307..08 |
M12 |
16 |
1.75 |
12 |
10.1 |
15 |
| L 308…08 |
22 |
26 |
| L 307…09 |
M14 |
18 |
2 |
14 |
– |
17 |
| L 308..09 |
24 |
28 |
| L 307…10 |
M16 |
20 |
2 |
14 |
– |
17 |
| L 308…10 |
24 |
28 |
Q: Are you a trading company or a manufacturer?
A: We are a manufacturer over 20 years in Shen Zhen,China .
Q: How long is your delivery time?
A: Generally it is 3 days if the goods are in stock. or it is 7days 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 can provide samples for free, but no shipping fee.
Q: What are your payment terms?
A: Payment<=5000USD, 100% in advance. Payment>=5000USD, 30% T/T in advance ,balance before shippment. Welcome to other terms.
Q: What are your price terms?
A: EXW/FOB/CIF/CFR/FCA/CPT/CIP etc.
Q: What is your product range?
A: Our product range includes key locking insert, self taping thread insert, wire thread insert, tailless thread insert installation tool, thread repair kit, etc. We strictly implement various quality standards such as GB, ISO, DIN, JIS, AISI NFE, BSW, etc., and also accept non-standard products.
Q: How to guarantee the Quality of Industrial Parts?
A: We have been in fastener field over 20 years with full experience. And there are 5 checks in the whole processing, We have IQC (incoming quality control), IPQCS (in process quality control section), FQC (final quality control) and OQC (out-going quality control) to control each process of industrial parts production.
Q: Why should I choose you? What are your advantages?
A: We are a professional manufacturer with many years of production and management experience in the field of fasteners. We can provide our customers with good solutions in terms of production design, production technology, packaging and after-sales service. Customer satisfaction is our only pursuit.
Thank you for your time! Your satisfaction and good feedback are our eternal pursuit!
If you have another question, pls feel free to cotact us at any time .
Packing
Package details: 1. paper packing or plastic packing 2. carton packing 3. wooden packing
Delivery
We can provide multiple shipping methods for your goods, including sea and air, as well as multiple expresses: DHL/FedEx/UPS/TNT/SF/EMS, and so on .
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