| 牙數(shù)/英寸 n
|
| 螺距 P (mm)
|
| 牙高 h (mm)
|
| 大徑（基準(zhǔn)直徑）d=D
|
基準(zhǔn)平面內(nèi)的基本直徑 (mm) |
| 中徑 d2=D2
|
| 小徑 d1=D1
|
| 基本
|
基準(zhǔn)距離 (mm) |
| 極限偏差 ±T?/2 (mm)
|
| 極限偏差 ±T?/2 (圈數(shù))
|
| 最大
|
| 最小
|
| mm
|
裝配余量 |
| 圈數(shù)
|
| 基準(zhǔn)距離（基本）
|
外螺紋的有效螺紋不小于 (mm) |
| 基準(zhǔn)距離（最大）
|
| 基準(zhǔn)距離（最?。?/font>
|
| 徑向 （mm）
|
圓柱內(nèi)螺紋直徑的極限偏差 ±T?/2 |
| 軸向圈數(shù)
|
|
| 28 |
28 |
19 |
19 |
14 |
14 |
11 |
11 |
11 |
11 |
11 |
11 |
11 |
11 |
11 |
| 0.907 |
0.907 |
1.337 |
1.337 |
1.814 |
1.814 |
2.309 |
2.309 |
2.309 |
2.309 |
2.309 |
2.309 |
2.309 |
2.309 |
2.309 |
| 0.581 |
0.581 |
0.856 |
0.856 |
1.162 |
1.162 |
1.479 |
1.479 |
1.479 |
1.479 |
1.479 |
1.479 |
1.479 |
1.479 |
1.479 |
| 7.723 |
9.728 |
13.157 |
16.662 |
20.955 |
26.441 |
33.249 |
41.910 |
47.803 |
59.614 |
75.184 |
87.884 |
113.030 |
138.430 |
163.830 |
| 7.142 |
9.147 |
12.301 |
15.806 |
19.793 |
25.279 |
31.770 |
40.431 |
46.324 |
58.135 |
73.705 |
86.405 |
111.551 |
136.951 |
162.351 |
| 6.561 |
8.566 |
11.445 |
14.950 |
18.631 |
24.117 |
30.291 |
38.952 |
44.845 |
56.656 |
72.226 |
84.926 |
110.072 |
135.472 |
160.872 |
| 4 |
4 |
6 |
6.4 |
8.2 |
9.5 |
10.4 |
12.7 |
12.7 |
15.9 |
17.5 |
20.6 |
25.4 |
28.6 |
28.6 |
| 0.9 |
0.9 |
1.3 |
1.3 |
1.8 |
1.8 |
2.3 |
2.3 |
2.3 |
2.3 |
3.5 |
3.5 |
3.5 |
3.5 |
3.5 |
| 1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 1/2 |
1 1/2 |
1 1/2 |
1 1/2 |
1 1/2 |
| 4.9 |
4.9 |
7.3 |
7.7 |
10.0 |
11.3 |
12.7 |
15.0 |
15.0 |
18.2 |
21.0 |
24.1 |
28.9 |
32.1 |
32.1 |
| 3.1 |
3.1 |
4.7 |
5.1 |
6.4 |
7.7 |
8.1 |
10.4 |
10.4 |
13.6 |
14.0 |
17.1 |
21.9 |
25.1 |
25.1 |
| 2.5 |
2.5 |
3.7 |
3.7 |
5 |
5 |
6.4 |
6.4 |
6.4 |
7.5 |
9.2 |
9.2 |
10.4 |
11.5 |
11.5 |
| 2 3/4 |
2 3/4 |
2 3/4 |
2 3/4 |
2 3/4 |
2 3/4 |
2 3/4 |
2 3/4 |
2 3/4 |
3 1/4 |
4 |
4 |
4 1/2 |
5 |
5 |
| 6.5 |
6.5 |
9.7 |
10.1 |
13.2 |
14.5 |
16.8 |
19.1 |
19.1 |
23.4 |
26.7 |
29.8 |
35.8 |
40.1 |
40.1 |
| 7.4 |
7.4 |
11 |
11.4 |
15 |
16.3 |
19.1 |
21.4 |
21.4 |
25.7 |
30.2 |
33.3 |
39.3 |
43.6 |
43.6 |
| 5.6 |
5.6 |
8.4 |
8.8 |
11.4 |
12.7 |
14.5 |
16.8 |
16.8 |
21.1 |
23.2 |
26.3 |
32.3 |
36.6 |
36.6 |
| 0.071 |
0.071 |
0.104 |
0.104 |
0.142 |
0.142 |
0.180 |
0.180 |
0.180 |
0.180 |
0.216 |
0.216 |
0.216 |
0.216 |
0.216 |
| 1 1/4 |
1 1/4 |
1 1/4 |
1 1/4 |
1 1/4 |
1 1/4 |
1 1/4 |
1 1/4 |
1 1/4 |
1 1/4 |
1 1/2 |
1 1/2 |
1 1/2 |
1 1/2 |
1 1/2 |
|
