 |
 |
|
| ねじの呼び |
山数 |
ねじ基準径
|
基準径の位置
a |
二面幅
B |
長さ
l |
| 外径 |
有効径 |
基準
寸法 |
許容差 |
基準
寸法 |
基準
寸法 |
1/8
|
28
|
9.728
|
9.147 |
3.97 |
±0.91 |
5 |
8 |
1/4
|
19
|
13.157
|
12.301 |
6.01 |
±1.34 |
6 |
11 |
3/8
|
19
|
16.662
|
15.806 |
6.35 |
±1.34 |
8 |
12 |
1/2
|
14
|
20.955
|
19.793 |
8.16 |
±1.81 |
10 |
15 |
| 3/4 |
14 |
26.441 |
25.279 |
9.53 |
±1.81 |
14 |
17 |
| 1" |
11 |
33.249 |
31.770 |
10.39 |
±2.31 |
17 |
19 |
| 1"1/4 |
11 |
41.910 |
40.431 |
12.70 |
±2.31 |
22 |
22 |
| 1"1/2 |
11 |
47.803 |
46.324 |
12.70 |
±2.31 |
22 |
22 |
| 2" |
11 |
59.614 |
58.135 |
15.88 |
±2.31 |
27 |
26 |
|