| 表4 ユニファイ細目ねじの基準寸法(2A) |
単位mm |
| ねじの呼び |
ピッチ
(Ｐ)
(参考) |
おねじ |
外径
(ｄmax) |
谷の径
参考(ｄ１max) |
No. 0-80 UNF
No. 1-72 UNF
No. 2-64 UNF |
0.3175
0.3528
0.3969 |
1.511
1.838
2.169
|
1.122
1.407
1.681 |
No. 3-56 UNF
No. 4-48 UNF
No. 5-44 UNF |
0.4536
0.5292
0.5773 |
2.496
2.872
3.157 |
1.940
2.176
2.448 |
No. 6-40 UNF
No. 8-36 UNF
No. 10-32 UNF |
0.6350
0.7056
0.7938 |
3.484
4.145
4.803 |
2.705
3.279
3.830 |
No. 12-28 UNF
1/4-28 UNF
5/16-24 UNF |
0.9071
0.9071
1.0583 |
5.461
6.324
7.909 |
4.348
5.212
6.611 |
3/8-24 UNF
7/16-20 UNF
1/2-20 UNF |
1.0583
1.2700
1.2700 |
9.497
11.079
12.666 |
8.199
9.522
11.109 |
9/16-18 UNF
5/8-18 UNF
3/4-16 UNF |
1.4111
1.4111
1.5875 |
14.251
15.839
19.011 |
12.519
14.107
17.063 |
7/8-14 UNF
1 -12 UNF
1 1/8-12 UNF |
1.8143
2.1167
2.1167 |
22.184
25.354
28.529 |
19.959
22.758
25.933 |
1 1/4-12 UNF
1 3/8-12 UNF
1 1/2-12 UNF |
2.1167
2.1167
2.1167 |
31.704
34.876
38.051 |
29.108
32.280
35.455 |
