ZOHA MACHINERY Co., Ltd. is a professional supplier of thread inserts filter elements and metal products. Since its establishment, ZOHA has always adhered to the production and business philosophy of "quality first, customer first", and is committed to providing cost-effective fastener products and fastening system solutions for various industries.
Now, ZOHA′s main products include thread inserts and filters two series. Thread inserts are tangless thread inserts, wire inserts with tails, self tapping inserts, keylocking inserts and their supporting tools. Filters are sintered mesh filter element, corrugated filter element, wire-wound filter element, bag filters, etc. Products are widely used in fields such as communication electronics, aviation, aerospace, rail transit, ships, medical treatment, industrial equipment. Through the continuous efforts of ZOHA people, ZOHA products have been widely used in industries such as aviation, aerospace, high-speed rail, large locomotives, automotive manufacturing, power, machinery, as well as high-voltage switchgear, etc.
ZOHA, to create a global brand of Chinese wire thread inserts and filter elements.
Colored stainless steel thread inserts coils are cylindrical, metal bushings with features on the outside which lock them into a plastic or metal base material to anchor your fasteners.
ZOHA threaded Inserts provide high-quality, permanent, wear-resistant internal threads and are designed to be installed in molded or drilled holes in one simple step.
The surface treatment can be colored to avoid short installing.
Installation Procedure:
Step one: With the slotted or three hole end facing downwards, screw the threaded end of the installation tool into the other end of the thread
Insert until the tool nut and screw sleeve are tightly attached.
Step two: At this point, align the thread insert vertically with the bottom hole, rotate the tool, and the screw sleeve can be screwed in.
Step three: After screwing it into place, use one wrench
to hold the installation tool nut in place, and the other wrench to rotate the installation tool counterclockwise to loosen the tool nut and thread insert tail. Then, directly rotate the tool handle to remove the tool from the thread insert.
| Nonimal Diameter(d) |
Pitch(P) |
Length |
Coils(W) |
OD in Free State(Dz) |
Bit Diameter(d) |
Drill Depth(L3) |
Actual Effective Length(L2) |
| ×d |
L1 |
| 2 |
0.4 |
1d |
2.0 |
2.9 |
2.60~2.80 |
2.1 |
3.6 |
1.6 |
| 1.5d |
3.0 |
4.9 |
4.6 |
2.6 |
| 2d |
4.0 |
6.9 |
5.6 |
3.6 |
| 2.5d |
5.0 |
8.9 |
6.6 |
4.6 |
| 3d |
6.0 |
10.9 |
7.6 |
5.6 |
| 2.5 |
0.45 |
1d |
2.5 |
3.5 |
3.30~3.50 |
2.6 |
4.3 |
2.1 |
| 1.5d |
3.75 |
5.9 |
5.6 |
3.3 |
| 2d |
5.0 |
8.1 |
6.8 |
4.6 |
| 2.5d |
6.25 |
10.5 |
8.1 |
5.8 |
| 3d |
7.5 |
12.9 |
9.3 |
7.0 |
| 3 |
0.5 |
1d |
3.0 |
3.9 |
3.80~4.00 |
3.1 |
5.0 |
2.5 |
| 1.5d |
4.5 |
6.3 |
6.5 |
4.0 |
| 2d |
6.0 |
8.7 |
8.0 |
5.5 |
| 2.5d |
7.5 |
11.1 |
9.5 |
7.0 |
| 3d |
9.0 |
13.5 |
11.0 |
8.5 |
| 4 |
0.7 |
1d |
4.0 |
3.7 |
5.05~5.25 |
4.2 |
6.8 |
3.3 |
| 1.5d |
6.0 |
6.1 |
8.8 |
5.3 |
| 2d |
8.0 |
8.4 |
10.8 |
7.3 |
| 2.5d |
10.0 |
10.9 |
12.8 |
9.3 |
| 3d |
12.0 |
13.2 |
14.8 |
11.3 |
| 5 |
0.8 |
1d |
5.0 |
4.3 |
6.35~6.60 |
5.2 |
8.2 |
4.2 |
| 1.5d |
7.5 |
6.9 |
10.7 |
6.7 |
| 2d |
10.0 |
9.7 |
13.2 |
9.2 |
| 2.5d |
12.5 |
12.3 |
15.7 |
11.7 |
| 3d |
15.0 |
14.8 |
18.2 |
14.2 |
| 6 |
1 |
1d |
6.0 |
4.2 |
7.60~7.85 |
6.3 |
10.0 |
5.0 |
| 1.5d |
9.0 |
6.9 |
13.0 |
8.0 |
| 2d |
12.0 |
9.6 |
16.0 |
11.0 |
| 2.5d |
15.0 |
12.3 |
19.0 |
14.0 |
| 3d |
18.0 |
14.6 |
22.0 |
17.0 |
| 8 |
1.25 |
1d |
8.0 |
4.7 |
9.85~10.10 |
8.3 |
13.0 |
6.8 |
| 1.5d |
12.0 |
7.4 |
17.0 |
10.8 |
| 2d |
16.0 |
10.6 |
21.0 |
14.8 |
| 2.5d |
20.0 |
13.5 |
25.0 |
18.8 |
| 3d |
24.0 |
16.4 |
29.0 |
22.8 |
| 8 |
1 |
1d |
8.0 |
6.1 |
9.85~10.10 |
8.3 |
12.0 |
7.0 |
| 1.5d |
12.0 |
9.5 |
16.0 |
11.0 |
| 2d |
16.0 |
12.9 |
20.0 |
15.0 |
| 2.5d |
20.0 |
16.5 |
24.0 |
19.0 |
| 3d |
24 |
19.9 |
28.0 |
23.0 |
| 10 |
1.5 |
1d |
10.0 |
5.0 |
12.10~12.50 |
10.4 |
16.0 |
8.5 |
| 1.5d |
15.0 |
8.1 |
21.0 |
13.5 |
| 2d |
20.0 |
11.2 |
26.0 |
18.5 |
| 2.5d |
25.0 |
14.2 |
31.0 |
23.5 |
| 3d |
30.0 |
17.2 |
36.0 |
28.5 |
| 10 |
1.25 |
1d |
10.0 |
6.0 |
12.10~12.50 |
10.3 |
15.0 |
8.8 |
| 1.5d |
15.0 |
9.7 |
20.0 |
13.8 |
| 2d |
20.0 |
13.1 |
25.0 |
18.8 |
| 2.5d |
25.0 |
16.9 |
30.0 |
23.75 |
| 3d |
30.0 |
20.1 |
35.0 |
28.75 |
| 10 |
1 |
1d |
10.0 |
7.6 |
12.10~12.50 |
10.3 |
14.0 |
9.0 |
| 1.5d |
15.0 |
12.1 |
19.0 |
14.0 |
| 2d |
20.0 |
16.3 |
24.0 |
19.0 |
| 2.5d |
25 |
20.7 |
29.0 |
24.0 |
| 3d |
30 |
25.0 |
34.0 |
29.0 |
| 12 |
1.75 |
1d |
12.0 |
5.2 |
14.40~14.80 |
12.4 |
19.0 |
10.3 |
| 1.5d |
18.0 |
8.4 |
25.0 |
16.3 |
| 2d |
24.0 |
11.7 |
31.0 |
22.3 |
| 2.5d |
32.0 |
14.7 |
39.0 |
30.3 |
| 3d |
36.0 |
18.0 |
43.0 |
34.3 |
| 12 |
1.5 |
1d |
12.0 |
6.2 |
14.40~14.80 |
12.4 |
18.0 |
10.5 |
| 1.5d |
18.0 |
9.8 |
24.0 |
16.5 |
| 2d |
24.0 |
13.5 |
30.0 |
22.5 |
| 2.5d |
32.0 |
17.1 |
38.0 |
30.5 |
| 3d |
36.0 |
20.8 |
42.0 |
34.5 |
| 12 |
1.25 |
1d |
12.0 |
7.4 |
14.40~14.80 |
12.3 |
17.0 |
10.8 |
| 1.5d |
18.0 |
11.6 |
23.0 |
16.8 |
| 2d |
24.0 |
15.9 |
29.0 |
22.8 |
| 2.5d |
30.0 |
20.0 |
35.0 |
28.75 |
| 3d |
36.0 |
24.3 |
41.0 |
34.75 |
| 12 |
1 |
1d |
12.0 |
9.3 |
14.40~14.80 |
12.3 |
16.0 |
11.0 |
| 1.5d |
18.0 |
14.5 |
22.0 |
17.0 |
| 2d |
24.0 |
19.5 |
28.0 |
23.0 |
| 2.5d |
30.0 |
24.8 |
34.0 |
29.0 |
| 3d |
36.0 |
30.0 |
40.0 |
35.0 |
| 14 |
2 |
1d |
14.0 |
5.6 |
16.80~17.20 |
14.5 |
22.0 |
12.0 |
| 1.5d |
21.0 |
8.8 |
29.0 |
19.0 |
| 2d |
28.0 |
12.0 |
36.0 |
26.0 |
| 2.5d |
35.0 |
15.2 |
43.0 |
33.0 |
| 14 |
1.5 |
1d |
14.0 |
7.4 |
16.80~17.20 |
14.4 |
20.0 |
12.5 |
| 1.5d |
21.0 |
11.6 |
27.0 |
19.5 |
| 2d |
28.0 |
15.7 |
34.0 |
26.5 |
| 2.5d |
35.0 |
19.9 |
41.0 |
33.5 |
| 14 |
1.25 |
Thread |
8.4 |
4.6 |
16.80~17.20 |
14.3 |
13.4 |
7.15 |
| 12.4 |
7.4 |
17.4 |
11.15 |
| 14.4 |
9.1 |
19.4 |
13.15 |
| 16.4 |
10.2 |
21.4 |
15.15 |
| 14 |
1 |
1d |
14.0 |
11.2 |
16.80~17.20 |
14.3 |
18.0 |
13.0 |
| 1.5d |
21.0 |
17.2 |
25.0 |
20.0 |
| 2d |
28.0 |
23.2 |
32.0 |
27.0 |
| 2.5d |
35.0 |
29.2 |
39.0 |
34.0 |
| 16 |
2 |
1d |
16.0 |
6.5 |
19.00~19.40 |
16.5 |
24.0 |
14.0 |
| 1.5d |
24.0 |
10.1 |
32.0 |
22.0 |
| 2d |
32.0 |
13.8 |
40.0 |
30.0 |
| 2.5d |
40.0 |
17.5 |
48.0 |
38.0 |
| 16 |
1.5 |
0.75d |
12.0 |
6.1 |
19.00~19.40 |
16.4 |
18.0 |
10.5 |
| 1d |
16.0 |
8.7 |
22.0 |
14.5 |
| 1.5d |
24.0 |
13.4 |
30.0 |
22.5 |
| 2d |
32.0 |
18.1 |
38.0 |
30.5 |
| 2.5d |
40.0 |
22.9 |
46.0 |
38.5 |
| 18 |
2.5 |
0.75d |
13.5 |
3.8 |
21.50~22.0 |
18.6 |
23.5 |
7.0 |
| 1d |
18.0 |
5.6 |
28.0 |
15.5 |
| 1.5d |
27.0 |
9.0 |
37.0 |
24.5 |
| 2d |
36.0 |
12.3 |
46.0 |
33.5 |
| 18 |
2 |
0.75d |
13.5 |
5.1 |
21.50~22.0 |
18.5 |
21.5 |
11.5 |
| 1d |
18.0 |
7.1 |
26.0 |
16.0 |
| 1.5d |
27.0 |
11.2 |
35.0 |
25.0 |
| 2d |
36.0 |
15.1 |
44.0 |
34.0 |
| 18 |
1.5 |
0.5d |
9.0 |
4.2 |
21.50~22.0 |
18.4 |
15.0 |
7.5 |
| 0.75d |
13.5 |
7.0 |
19.5 |
12.0 |
| 1d |
18.0 |
9.5 |
24.0 |
16.5 |
| 1.5d |
27.0 |
14.9 |
33.0 |
25.5 |
| 2d |
36.0 |
20.2 |
42.0 |
34.5 |
| 20 |
2.5 |
0.5d |
10.0 |
2.7 |
23.70~24.20 |
20.6 |
20.0 |
7.5 |
| 0.75d |
15.0 |
4.5 |
25.0 |
12.5 |
| 1d |
20.0 |
6.3 |
30.0 |
17.5 |
| 1.5d |
30.0 |
10.0 |
40.0 |
27.5 |
| 2d |
40.0 |
13.7 |
50.0 |
37.5 |
| 20 |
2 |
0.5d |
10.0 |
3.5 |
23.70~24.20 |
20.5 |
18.0 |
8.0 |
| 0.75d |
15.0 |
5.8 |
23.0 |
13.0 |
| 1d |
20.0 |
8.0 |
28.0 |
18.0 |
| 1.5d |
30.0 |
12.5 |
38.0 |
28.0 |
| 2d |
40.0 |
16.8 |
48.0 |
38.0 |
| 20 |
1.5 |
0.5d |
10.0 |
4.9 |
23.70~24.20 |
20.4 |
16.0 |
8.5 |
| 0.75d |
15.0 |
7.9 |
21.0 |
13.5 |
| 1d |
20.0 |
10.7 |
26.0 |
18.5 |
| 1.5d |
30.0 |
16.7 |
36.0 |
28.5 |
| 2d |
40.0 |
22.4 |
46.0 |
38.5 |
| 24 |
3 |
0.75d |
18.0 |
4.5 |
28.6~29.1 |
24.8 |
30.0 |
15.0 |
| 1d |
24.0 |
6.2 |
36.0 |
21.0 |
| 1.5d |
36.0 |
10.0 |
48.0 |
33.0 |
| 2d |
48.0 |
14.0 |
60.0 |
45.0 |
| 24 |
2 |
0.5d |
12.0 |
4.3 |
28.6~29.1 |
24.8 |
20.0 |
10.0 |
| 0.75d |
18.0 |
7.0 |
26.0 |
16.0 |
| 1d |
24.0 |
9.6 |
32.0 |
22.0 |
| 1.5d |
36.0 |
15.0 |
44.0 |
34.0 |
| 2d |
48.0 |
20.2 |
56.0 |
46.0 |
| 24 |
1.5 |
0.5d |
12.0 |
6.0 |
28.6~29.1 |
24.4 |
18.0 |
10.5 |
| 0.75d |
18.0 |
9.5 |
24.0 |
16.5 |
| 1d |
24.0 |
12.9 |
30.0 |
22.5 |
| 1.5d |
36.0 |
19.8 |
42.0 |
34.5 |
| 2d |
48.0 |
26.7 |
54.0 |
46.5 |
| 27 |
3 |
0.75d |
20.3 |
5.0 |
32.20~32.70 |
27.8 |
32.3 |
17.3 |
| 1d |
27.0 |
7.1 |
39.0 |
24.0 |
| 1.5d |
40.5 |
11.4 |
52.5 |
37.5 |
| 2d |
54.0 |
15.4 |
66.0 |
51.0 |
| 2.5d |
67.5 |
19.5 |
79.5 |
64.5 |
| 27 |
2 |
0.5d |
13.5 |
5.1 |
32.20~32.70 |
27.5 |
21.5 |
11.5 |
| 0.75d |
20.3 |
7.9 |
28.3 |
18.3 |
| 1d |
27.0 |
10.8 |
35.0 |
25.0 |
| 1.5d |
40.5 |
16.8 |
48.5 |
38.5 |
| 2d |
54.0 |
22.6 |
62.0 |
52.0 |
| 27 |
1.5 |
0.5d |
13.5 |
6.7 |
32.20~32.70 |
27.4 |
19.5 |
12.0 |
| 0.75d |
20.3 |
10.7 |
26.3 |
18.8 |
| 1d |
27.0 |
14.6 |
33.0 |
25.5 |
| 1.5d |
40.5 |
22.6 |
46.5 |
39.0 |
| 2d |
54.0 |
30.0 |
60.0 |
52.5 |
| 30 |
3.5 |
0.75d |
22.5 |
4.9 |
35.20~35.70 |
30.9 |
36.5 |
19.0 |
| 1d |
30.0 |
7.0 |
44.0 |
26.5 |
| 1.5d |
45.0 |
11.0 |
59.0 |
41.5 |
| 2d |
60.0 |
14.9 |
74.0 |
56.5 |
| 30 |
2 |
0.5d |
15.0 |
5.7 |
35.20~35.70 |
30.5 |
23.0 |
13.0 |
| 0.75d |
22.5 |
9.0 |
30.5 |
20.5 |
| 1d |
30.0 |
12.3 |
38.0 |
28.0 |
| 1.5d |
45.0 |
19.0 |
53.0 |
43.0 |
| 2d |
60.0 |
25.5 |
68.0 |
58.0 |
| 30 |
1.5 |
0.5d |
15.0 |
7.8 |
35.20~35.70 |
30.4 |
21.0 |
13.5 |
| 0.75d |
22.5 |
12.2 |
28.5 |
21.0 |
| 1d |
30.0 |
16.5 |
36.0 |
28.5 |
| 1.5d |
45.0 |
25.3 |
51.0 |
43.5 |
| 2d |
60.0 |
34.0 |
66.0 |
58.5 |
Package: Usually finished products will be put into plastic bags and outer with carton cases.
We will also reinforce the cases onto tthe pallet to avoid damage during transportation.
Delivery time: Stocked goods can be delivered out the same day we received the order.
Usually the delivery time is within 3-7 working days.
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