ネジ下穴径表
メートル並目ネジ下穴径
| ねじの呼び |
ピッチ |
ドリル径 |
| M1 |
0.25 |
0.75 |
| M1.1 |
0.25 |
0.85 |
| M1.2 |
0.25 |
0.95 |
| M1.4 |
0.3 |
1.1 |
| M1.6 |
0.35 |
1.25 |
| M1.8 |
0.35 |
1.45 |
| M2 |
0.4 |
1.6 |
| M2.2 |
0.45 |
1.75 |
| M2.5 |
0.45 |
2.1 |
| M3 |
0.5 |
2.5 |
| M3.5 |
0.6 |
2.9 |
| M4 |
0.7 |
3.3 |
| M4.5 |
0.75 |
3.8 |
| M5 |
0.8 |
4.2 |
| M6 |
1 |
5 |
| M7 |
1 |
6 |
| M8 |
1.25 |
6.8 |
| M9 |
1.25 |
7.8 |
| M10 |
1.5 |
8.5 |
| M11 |
1.5 |
9.5 |
| M12 |
1.75 |
10.3 |
| M14 |
2 |
12 |
| M16 |
2 |
14 |
| M18 |
2.5 |
15.5 |
| M20 |
2.5 |
17.5 |
| M22 |
2.5 |
19.5 |
| M24 |
3 |
21 |
| M27 |
3 |
24 |
| M30 |
3.5 |
26.5 |
| M33 |
3.5 |
29.5 |
| M36 |
4 |
32 |
| M39 |
4 |
35 |
| M42 |
4.5 |
37.5 |
| M45 |
4.5 |
40.5 |
| M48 |
5 |
43 |
↑TOPへ戻る
メートル細目ネジ下穴径
| ねじの呼び |
ピッチ |
ドリル径 |
| M2.5 |
0.35 |
2.2 |
| M3 |
0.35 |
2.7 |
| M3.5 |
0.35 |
3.2 |
| M4 |
0.5 |
3.5 |
| M4.5 |
0.5 |
4 |
| M5 |
0.5 |
4.5 |
| M5.5 |
0.5 |
5 |
| M6 |
0.75 |
5.3 |
| M7 |
0.75 |
6.3 |
| M8 |
1 |
7 |
| M8 |
0.75 |
7.3 |
| M9 |
1 |
8 |
| M9 |
0.75 |
8.3 |
| M10 |
1.25 |
8.8 |
| M10 |
1 |
9 |
| M10 |
0.75 |
9.3 |
| M11 |
1 |
10 |
| M11 |
0.75 |
10.3 |
| M12 |
1.5 |
10.5 |
| M12 |
1.25 |
10.8 |
| M12 |
1 |
11 |
| M14 |
1.5 |
12.5 |
| M14 |
1 |
13 |
| M15 |
1.5 |
13.5 |
| M15 |
1 |
14 |
| M16 |
1.5 |
14.5 |
| M16 |
1 |
15 |
| M17 |
1.5 |
15.5 |
| M17 |
1 |
16 |
| M18 |
2 |
16 |
| M18 |
1.5 |
16.5 |
| M18 |
1 |
17 |
| M20 |
2 |
18 |
| M20 |
1.5 |
18.5 |
| M20 |
1 |
19 |
| M22 |
2 |
20 |
| M22 |
1.5 |
20.5 |
| M22 |
1 |
21 |
| M24 |
2 |
22 |
| M24 |
1.5 |
22.5 |
| M24 |
1 |
23 |
| M25 |
2 |
23 |
| M25 |
1.5 |
23.5 |
| M25 |
1 |
24 |
| M26 |
1.5 |
24.5 |
| M27 |
2 |
25 |
| M27 |
1.5 |
25.5 |
| M27 |
1 |
26 |
| M28 |
2 |
26 |
| M28 |
1.5 |
26.5 |
| M28 |
1 |
27 |
| M30 |
3 |
27 |
| M30 |
2 |
28 |
| M30 |
1.5 |
28.5 |
| M30 |
1 |
29 |
| M32 |
2 |
30 |
| M32 |
1.5 |
30.5 |
| M33 |
3 |
30 |
| M33 |
2 |
31 |
| M33 |
1.5 |
31.5 |
| M35 |
1.5 |
33.5 |
| M36 |
3 |
33 |
| M36 |
2 |
34 |
| M36 |
1.5 |
34.5 |
| M38 |
1.5 |
36.5 |
| M39 |
3 |
36 |
| M39 |
2 |
37 |
| M39 |
1.5 |
37.5 |
| M40 |
3 |
37 |
| M40 |
2 |
38 |
| M40 |
1.5 |
38.5 |
| M42 |
4 |
38 |
| M42 |
3 |
39 |
| M42 |
2 |
40 |
| M42 |
1.5 |
40.5 |
| M45 |
4 |
41 |
| M45 |
3 |
42 |
| M45 |
2 |
43 |
| M45 |
1.5 |
43.5 |
| M48 |
4 |
44 |
| M48 |
3 |
45 |
| M48 |
2 |
46 |
| M48 |
1.5 |
46.5 |
| M50 |
3 |
47 |
| M50 |
2 |
48 |
| M50 |
1.5 |
48.5 |
↑TOPへ戻る
ユニファイ並目ネジ下穴径
| ねじの呼び |
ドリル径 |
| No.1-64UNC |
1.55 |
| No.2-56UNC |
1.8 |
| No.3-48UNC |
2.1 |
| No.4-40UNC |
2.3 |
| No.5-40UNC |
2.6 |
| No.6-32UNC |
2.8 |
| No.8-32UNC |
3.4 |
| No.10-24UNC |
3.9 |
| No.12-24UNC |
4.5 |
| 1/4-20UNC |
5.1 |
| 5/16-18UNC |
6.6 |
| 3/8-16UNC |
8 |
| 7/16-14UNC |
9.4 |
| 1/2-13UNC |
10.8 |
| 9/16-12UNC |
12.2 |
| 5/8-11UNC |
13.6 |
| 3/4-10UNC |
16.5 |
| 7/8-9UNC |
19.5 |
| 1-8UNC |
22.2 |
| 1-1/8-7UNC |
25 |
| 1-1/4-7UNC |
28.2 |
| 1-3/8-6UNC |
30.8 |
| 1-1/2-6UNC |
34 |
| 1-3/4-5UNC |
39.5 |
| 2-4-1/2UNC |
45.2 |
↑TOPへ戻る
ユニファイ細目ネジ下穴径
| ねじの呼び |
ドリル径 |
| No.0-80UNF |
1.25 |
| No.1-72UNF |
1.55 |
| No.2-64UNF |
1.85 |
| No.3-56UNF |
2.1 |
| No.4-48UNF |
2.4 |
| No.5-44UNF |
2.7 |
| No.6-40UNF |
2.9 |
| No.8-36UNF |
3.5 |
| No.10-32UNF |
4.1 |
| No.12-28UNF |
4.6 |
| 1/4-28UNF |
5.5 |
| 5/16-24UNF |
6.9 |
| 3/8-24UNF |
8.5 |
| 7/16-20UNF |
9.9 |
| 1/2-20UNF |
11.5 |
| 9/16-18UNF |
12.9 |
| 5/8-18UNF |
14.5 |
| 3/4-16UNF |
17.5 |
| 7/8-14UNF |
20.5 |
| 1-12UNF |
23.2 |
| 1-1/8-12UNF |
26.5 |
| 1-1/4-12UNF |
29.5 |
| 1-3/8-12UNF |
32.8 |
| 1-1/2-12UNF |
36 |
↑TOPへ戻る
ウイット並目ネジ下穴径
| ねじの呼び |
ドリル径 |
| W1/8 |
2.6 |
| W3/16 |
3.7 |
| W1/4 |
5.1 |
| W5/16 |
6.6 |
| W3/8 |
8.0 |
| W7/16 |
9.4 |
| W1/2 |
10.7 |
| W9/16 |
12.3 |
| W5/8 |
13.7 |
| W3/4 |
16.7 |
| W7/8 |
19.5 |
| W1 |
22.4 |
| W1-1/8 |
25.0 |
| W1-1/4 |
28.3 |
| W1-3/8 |
30.5 |
| W1-1/2 |
33.8 |
| W1-5/8 |
36.0 |
| W1-3/4 |
39.2 |
| W1-7/8 |
41.8 |
| W2 |
45 |
↑TOPへ戻る
インサートネジ用メートル並目ネジ下穴径
| ねじの呼び |
ピッチ |
ドリル径 |
| M2.5 |
0.45 |
2.6 |
| M2.6 |
0.45 |
2.7 |
| M3 |
0.5 |
3.1 |
| M4 |
0.7 |
4.2 |
| M5 |
0.8 |
5.2 |
| M6 |
1 |
6.3 |
| M8 |
1.25 |
8.4 |
| M10 |
1.5 |
10.5 |
| M12 |
1.75 |
12.5 |
| M14 |
2 |
14.5 |
| M16 |
2 |
16.5 |
| M18 |
2.5 |
19.0 |
| M20 |
2.5 |
21.0 |
| M22 |
2.5 |
23.0 |
| M24 |
3 |
25.0 |
↑TOPへ戻る
インサートネジ用メートル細目ネジ下穴径
| ねじの呼び |
ピッチ |
ドリル径 |
| M10 |
1 |
10.3 |
| M10 |
1.25 |
10.4 |
| M12 |
1.25 |
12.5 |
| M12 |
1.5 |
12.5 |
| M14 |
1.5 |
14.5 |
| M16 |
1.5 |
16.5 |
| M18 |
1.5 |
18.5 |
| M20 |
1.5 |
20.5 |
| M20 |
2 |
20.5 |
| M22 |
1.5 |
22.5 |
| M24 |
1.5 |
24.5 |
| M24 |
2 |
24.5 |
| M30 |
1.5 |
30.5 |
↑TOPへ戻る
インサートネジ用ユニファイ並目ネジ下穴径
| ねじの呼び |
ドリル径 |
| No.2-56UNC |
2.3 |
| No.3-48UNC |
2.7 |
| No.4-40UNC |
3.0 |
| No.5-40UNC |
3.3 |
| No.6-32UNC |
3.7 |
| No.8-32UNC |
4.4 |
| No.10-24UNC |
5.1 |
| No.12-24UNC |
5.7 |
| 1/4-20UNC |
6.7 |
| 5/16-18UNC |
8.4 |
| 3/8-16UNC |
10.0 |
| 7/16-14UNC |
11.5 |
| 1/2-13UNC |
13.1 |
| 9/16-12UNC |
14.7 |
↑TOPへ戻る
インサートユニファイ細目ネジ下穴径
| ねじの呼び |
ドリル径 |
| No.4-48UNF |
3.0 |
| No.6-40UNF |
3.7 |
| No.8-36UNF |
4.4 |
| No.10-32UNF |
5.0 |
| 1/4-28UNF |
6.6 |
| 5/16-24UNF |
8.2 |
| 3/8-24UNF |
9.8 |
| 7/16-20UNF |
11.5 |
| 1/2-20UNF |
13.1 |
| 9/16-18UNF |
14.7 |
| 5/8-18UNF |
16.3 |
| 3/4-16UNF |
19.5 |
| 7/8-14UNF |
22.7 |
| 1-12UNF |
26.0 |
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