Code |
Large diameter |
Pitch |
Ⅰ type (short form) |
Type Ⅱ (long) |
l3 |
d2 |
d1 |
Square head |
|||||
l |
l1 |
l2 |
l |
l1 |
l2 |
a |
l5 |
||||||
Tr8×1.5 |
8.3 |
1.5 |
60 |
24 |
15 |
80 |
30 |
30 |
8 |
6.0 |
6.3 |
5.0 |
8 |
Tr10×2 |
10.5 |
2.0 |
80 |
40 |
28 |
110 |
56 |
40 |
10 |
8.0 |
7.0 |
5.6 |
8 |
Tr12×3 |
12.5 |
3.0 |
115 |
63 |
45 |
160 |
85 |
65 |
12 |
9.0 |
8.0 |
6.3 |
9 |
Tr14×3 |
14.5 |
3.0 |
115 |
63 |
45 |
160 |
85 |
65 |
12 |
11.0 |
10.0 |
8.0 |
11 |
Tr16×4 |
16.5 |
4.0 |
170 |
100 |
75 |
220 |
125 |
100 |
16 |
12.0 |
11.2 |
9.0 |
12 |
Tr18×4 |
18.5 |
4.0 |
170 |
100 |
75 |
220 |
125 |
100 |
16 |
14.0 |
12.5 |
10.0 |
13 |
Tr20×4 |
20.5 |
4.0 |
170 |
100 |
75 |
220 |
125 |
100 |
16 |
16.0 |
14.0 |
11.2 |
14 |
Tr22×5 |
22.5 |
5.0 |
250 |
155 |
125 |
290 |
170 |
140 |
20 |
17.0 |
16.0 |
12.5 |
16 |
Tr24×5 |
24.5 |
5.0 |
250 |
155 |
125 |
290 |
170 |
140 |
20 |
19.0 |
10.0 |
14.0 |
18 |
Tr26×5 |
26.5 |
5.0 |
250 |
155 |
125 |
290 |
170 |
140 |
20 |
21.0 |
20.0 |
16.0 |
20 |
Tr28×5 |
28.5 |
5.0 |
250 |
155 |
125 |
290 |
170 |
140 |
20 |
23.0 |
22.4 |
18.0 |
22 |
Tr30×6 |
31.0 |
6.0 |
300 |
170 |
135 |
350 |
216 |
180 |
24 |
24.0 |
22.4 |
18.0 |
22 |
Tr32×6 |
33.0 |
6.0 |
300 |
170 |
135 |
350 |
216 |
180 |
24 |
26.0 |
25.0 |
20.0 |
24 |
Tr34×6 |
35.0 |
6.0 |
300 |
170 |
135 |
350 |
216 |
180 |
24 |
28.0 |
25.0 |
20.0 |
24 |
Tr36×6 |
37.0 |
6.0 |
300 |
170 |
135 |
350 |
216 |
180 |
24 |
30.0 |
28.0 |
22.4 |
26 |
Tr38×7 |
39.0 |
7.0 |
360 |
220 |
175 |
420 |
250 |
210 |
28 |
31.0 |
28.0 |
22.4 |
26 |
Tr40×7 |
41.0 |
7.0 |
360 |
220 |
175 |
420 |
250 |
210 |
28 |
33.0 |
31.0 |
25.0 |
28 |
Tr42×7 |
43.0 |
7.0 |
360 |
220 |
175 |
420 |
250 |
210 |
28 |
35.0 |
31.0 |
25.0 |
28 |
Tr44×7 |
45.0 |
7.0 |
360 |
220 |
175 |
420 |
250 |
210 |
28 |
37.0 |
35.5 |
28.Q |
31 |
Tr46×8 |
47.0 |
8.0 |
400 |
240 |
190 |
490 |
290 |
240 |
32 |
38.0 |
35.5 |
28.0 |
31 |
Tr48×8 |
49.0 |
8.0 |
400 |
240 |
190 |
490 |
290 |
240 |
32 |
40.0 |
35.5 |
28.0 |
31 |
Tr50×8 |
51.0 |
8.0 |
400 |
240 |
190 |
490 |
290 |
240 |
32 |
42.0 |
40.0 |
31.5 |
34 |
Tr52×8 |
53.0 |
8.0 |
400 |
240 |
190 |
490 |
290 |
240 |
32 |
44.0 |
40.0 |
31.5 |
34 |
Note: 1, priority production and supply of single tap; 2, group tap count is determined by the manufacturer; 3, unequal diameter group Taps, first rough cone, a second cone rough, rough first ...... cone shank portion cutting each one, two ...... ring logo, to show the difference; 4, press tap straight groove or spiral groove production, determined by the manufacturer; 5, l2 recommended size.