ネジの基準寸法表



１．メートル細目ネジ(isoネジ)の基準寸法

２．メートル並目ネジ(jisネジ)の基準寸法

３．管用平行ネジ (ガスネジ)の基準寸法




メートル細目ネジ(isoネジ)の基準寸法(単位mm)

ねじの呼び ピッチ
(Ｐ)
(参考)		 ひっかかり
の高さ
(Ｈ１)		 外径
(ｄ)		 有効径
(ｄ２)		 谷の径
(ｄ１)
M1x0.2
M1.1x0.2
M1.2x0.2
M1.4x0.2
M1.6x0.2
M1.8x0.2/TD> 		0.20
0.20
0.20
0.20
0.20
0.20		 0.108
0.108
0.108
0.108
0.108
0.108		 1.000
1.100
1.200
1.400
1.600
1.800		 0.870
0.970
1.070
1.270
1.470
1.670		 0.783
0.883
0.983
1.183
1.383
1.583
M2x0.25
M2.2x0.25		 0.25
0.25		 0.135
0.135		 2.000
2.200		 1.838
2.038		 1.729
1.929
M2.5x0.35
M3x0.35
M3.5x0.35		 0.35
0.35
0.35		 0.189
0.189
0.189		 2.500
3.000
3.500		 2.273
2.773
3.273		 2.121
2.621
3.121
M4x0.5
M4.5x0.5
M5x0.5
M5.5x0.5		 0.50
0.50
0.50
0.50		 0.271
0.271
0.271
0.271		 4.000
4.500
5.000
5.500		 3.675
4.175
4.675
5.175		 3.459
3.959
4.459
4.959
M6x0.75
M7x0.75		 0.75
0.75		 0.406
0.406		 6.000
7.000		 5.513
6.513		 5.188
6.188
M8x1.0
M8x0.75		 1.00
0.75		 0.541
0.406		 8.000
8.000		 7.350
7.513		 6.917
7.188
M9x1.0
M9x0.75		 1.00
0.75		 0.541
0.406		 9.000
9.000		 8.350
8.513		 7.917
8.188
M10x1.25
M10x1.0
M10x0.75		 1.25
1.00
0.75		 0.677
0.541
0.406		 10.000
10.000
10.000		 9.188
9.350
9.513		 8.647
8.917
9.188
M11x1.0
M11x0.75		 1.00
0.75		 0.541
0.406		 11.000
11.000		 10.350
10.513		 9.917
10.188
M12x1.5
M12x1.25
M12X1.0		 1.50
1.25
1.00		 0.812
0.677
0.541		 12.000
12.000
12.000		 11.026
11.188
11.350		 10.376
10.647
10.917
M14X1.5
M14x1.25
M14x1.0		 1.50
1.25
1.00		 0.812
0.677
0.541		 14.000
14.000
14.000		 13.026
13.188
13.350		 12.376
12.647
12.917
M15x1.5
M15x1.0		 1.50
1.00		 0.812
0.541		 15.000
15.000		 14.026
14.350		 13.376
13.917
M16x1.5
M16x1.0		 1.50
1.00		 0.812
0.541		 16.000
16.000		 15.026
15.350		 14.376
14.917
M17x1.5
M17x1.0		 1.50
1.00		 0.812
0.541		 17.000
17.000		 16.026
16.350		 15.376
15.917
M18x2.0
M18x1.5
M18x1.0		 2.00
1.50
1.00		 1.083
0.812
0.541		 18.000
18.000
18.000		 16.701
17.026
17.350		 16.376
16.917
M20x2.0
M20x1.5
M20x1.0		 2.00
1.50
1.00		 1.083
0.812
0.541		 20.000
20.000
20.000		 18.701
19.026
19.350		 17.835
18.376
18.917
M22x2.0
M22x1.5
M22x1.0		 2.00
1.50
1.00		 1.083
0.812
0.541		 22.000
22.000
22.000		 20.701
21.026
21.350		 19.835
20.376
20.917
M24x2.0
M24x1.5
M24x1.0		 2.00
1.50
1.00		 1.083
0.812
0.541		 24.000
24.000
24.000		 22.701
23.026
23.350		 21.835
22.376
22.917
M25x2.0
M25x1.5
M25x1.0		 2.00
1.50
1.00		 1.083
0.812
0.541		 25.000
25.000
25.000		 23.701
24.026
24.350		 22.835
23.376
23.917
M26x1.5 1.50 0.812 26.000 25.026 24.376
M27x2.0
M27x1.5
M27x1.0		 2.00
1.50
1.00		 1.083
0.812
0.541		 27.000
27.000
27.000		 25.701
26.026
26.350		 24.835
25.376
25.917
M28x2.0
M28x1.5
M28x1.0		 2.00
1.50
1.00		 1.083
0.812
0.541		 28.000
28.000
28.000		 26.701
27.026
27.350		 25.835
26.376
26.917
M30x3.0
M30x2.0
M30x1.5
M30x1.0		 3.00
2.00
1.50
1.00		 1.624
1.083
0.812
0.541		 30.000
30.000
30.000
30.000		 28.051
28.701
29.026
29.350		 26.752
27.835
28.376
28.917
M32x2.0
M32x1.5		 2.00
1.50		 1.083
0.812		 32.000
32.000		 30.701
31.026		 29.835
30.376
M33x3.0
M33x2.0
M33x1.5		 3.00
2.00
1.50		 1.624
1.083
0.812		 33.000
33.000
33.000		 31.051
31.701
32.026		 29.752
30.835
31.376
M35x1.5 1.50 0.812 35.000 34.026 33.376
M36x3.0
M36x2.0
M36x1.5		 3.00
2.00
1.50		 1.624
1.083
0.812		 36.000
36.000
36.000		 34.051
34.701
35.026		 32.752
33.835
34.376
M38x1.5 1.50 0.812 38.000 37.026 36.376
M39x3.0
M39x2.0
M39x1.5		 3.00
2.00
1.50		 1.624
1.083
0.812		 39.000
39.000
39.000		 37.051
37.701
38.026		 35.752
36.835
37.376
M40x3.0
M40x2.0
M40x1.5		 3.00
2.00
1.50		 1.624
1.083
0.812		 40.000
40.000
40.000		 38.051
38.701
39.026		 36.752
37.835
38.376
M42x4.0
M42x3.0
M42x2.0
M42x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 42.000
42.000
42.000
42.000		 39.402
40.051
40.701
41.026		 37.670
38.752
39.835
40.376
M45x4.0
M45x3.0
M45x2.0
M45x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 45.000
45.000
45.000
45.000		 42.402
43.051
43.701
44.026		 40.670
41.752
42.835
43.376
M48x4.0
M48x3.0
M48x2.0
M48x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 48.000
48.000
48.000
48.000		 45.402
46.051
46.701
47.026		 43.670
44.752
45.835
46.376
M50x3.0
M50x2.0
M50x1.5		 3.00
2.00
1.50		 1.624
1.083
0.812		 50.000
50.000
50.000		 48.051
48.701
49.026		 46.752
47.835
48.376
M52x4.0
M52x3.0
M52x2.0
M52x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 52.000
52.000
52.000
52.000		 49.402
50.051
50.701
51.026		 47.670
48.752
49.835
50.376
M55x4.0
M55x3.0
M55x2.0
M55x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 55.000
55.000
55.000
55.000		 52.402
53.051
53.701
54.026		 50.670
51.752
52.835
53.376
M56x4.0
M56x3.0
M56x2.0
M56x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 56.000
56.000
56.000
56.000		 53.402
54.051
54.701
55.026		 51.670
52.752
53.835
54.376
M58x4.0
M58x3.0
M58x2.0
M58x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 58.000
58.000
58.000
58.000		 55.402
56.051
56.701
57.026		 53.670
54.752
55.835
56.376
M60x4.0
M60x3.0
M60x2.0
M60x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 60.000
60.000
60.000
60.000		 57.402
58.051
58.701
59.026		 55.670
56.752
57.835
58.376
M62x4.0
M62x3.0
M62x2.0
M62x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 62.000
62.000
62.000
62.000		 59.402
60.051
60.701
61.026		 57.670
58.752
59.835
60.376
M64x4.0
M64x3.0
M64x2.0
M64x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 64.000
64.000
64.000
64.000		 61.402
62.051
62.701
63.026		 59.670
60.752
61.835
62.376
M65x4.0
M65x3.0
M65x2.0
M65x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 65.000
65.000
65.000
65.000		 62.402
63.051
63.701
64.026		 60.670
61.752
62.835
63.376
M68x4.0
M68x3.0
M68x2.0
M68x1.5		 4.00
3.00
2.00
1.50		 2.165
1.624
1.083
0.812		 68.000
68.000
68.000
68.000		 65.402
66.051
66.701
67.026		 63.670
64.752
65.835
66.376
M70x6.0
M70x4.0
M70x3.0
M70x2.0
M70x1.5		 6.00
4.00
3.00
2.00
1.50		 3.248
2.165
1.624
1.083
0.812		 70.000
70.000
70.000
70.000
70.000		 66.103
67.402
68.051
68.701
69.026		 63.505
65.670
66.752
67.835
68.376



メートル並目ネジ(jisネジ)の基準寸法(単位mm)

ねじの呼び 　
主 副1 副2 ピッチ(P) 山の高さ(H) 外径(d) 有効径(d2) 谷径(d1)
M1

M1.2		 M1.1 　 0.25
0.25
0.25		 0.135
0.135
0.135		 1.000
1.100
1.200		 0.838
0.938
1.038		 0.729
0.829
0.929
M1.6 M1.4

M1.8		 　 0.3
0.35
0.35		 0.162
0.189
0.189		 1.400
1.600
1.800		 1.205
1.373
1.573		 1.075
1.221
1.421
M2

M2.5		 M2.2 　 0.4
0.45
0.45		 0.217
0.244
0.244		 2.000
2.200
2.500		 1.740
1.908
2.208		 1.567
1.713
2.013
M3

M4		 M3.5 　 0.5
0.6
0.7		 0.271
0.325
0.379		 3.000
3.500
4.000		 2.675
3.110
3.545		 2.459
2.850
3.242
M5
M6		 M4.5 　 0.75
0.8
1		 0.406
0.433
0.541		 4.500
5.000
6.000		 4.013
4.480
5.350		 3.688
4.134
4.917
M8 　 M7

M9		 1
1.25
1.25		 0.541
0.677
0.677		 7.000
8.000
9.000		 6.350
7.188
8.188		 5.917
6.647
7.647
M10

M12		 　 M11 1.5
1.5
1.75		 0.812
0.812
0.947		 10.000
11.000
12.000		 9.026
10.026
10.863		 8.376
9.376
10.106
M16 M14

M18		 　 2
2
2.5		 1.083
1.083
1.353		 14.000
16.000
18.000		 12.701
14.701
16.376		 11.835
13.835
15.294
M20

M24		 M22 　 2.5
2.5
3		 1.353
1.353
1.624		 20.000
22.000
24.000		 18.376
20.376
22.051		 17.294
19.294
20.752
M30 M27

M33		 　 3
3.5
3.5		 1.624
1.894
1.894		 27.000
30.000
33.000		 25.051
27.727
30.727		 23.752
26.211
29.211
M36

M42		 M39 　 4
4
4.5		 2.165
2.165
2.436		 36.000
39.000
42.000		 33.402
36.402
39.077		 31.670
34.670
37.129
M48 M45

M52		 　 4.5
5
5		 2.436
2.706
2.706		 45.000
48.000
52.000		 42.077
44.752
48.752		 40.129
42.587
46.587
M56

M64		 M60

M68		 　 5.5
5.5
6
6		 2.977
2.977
3.248
3.248		 56.000
60.000
64.000
68.000		 52.428
56.428
60.103
64.103		 50.046
54.046
57.505
61.505



管用平行ネジ(ガスネジ)の基準寸法(抜粋)(単位mm)

ねじの
呼び		 ねじ山数
25.4mm
につき
(ｎ)		 ピッチ
(Ｐ)
(参考)		 ねじ山の
高さ
(ｈ)		 山の頂及び
谷の丸み
(ｒ)		 外径
(ｄ)		 有効径
(ｄ２)		 谷の径
(ｄ１)
G 1/16 28 0.9071 0.581 0.12 7.723 7.142 6.561
G 1/16 28 0.9071 0.581 0.12 7.723 7.142 6.561
G 1/8 28 0.9071 0.581 0.12 9.728 9.147 8.566
G 1/4 19 1.3368 0.856 0.18 13.157 12.301 11.445
G 3/8 19 1.3368 0.856 0.18 16.662 15.806 14.950
G 1/2 14 1.8143 1.162 0.25 20.955 19.793 18.631
G 5/8 14 1.8143 1.162 0.25 22.911 21.749 20.587
G 3/4 14 1.8143 1.162 0.25 26.441 25.279 24.117
G 7/8 14 1.8143 1.162 0.25 30.201 29.039 27.877
G 1 11 2.3091 1.479 0.32 33.249 31.770 30.291
G 1 1/8 11 2.3091 1.479 0.32 37.897 36.418 34.939
G 1 1/4 11 2.3091 1.479 0.32 41.910 40.431 38.952
G 1 1/2 11 2.3091 1.479 0.32 47.803 46.324 44.845
G 1 3/4 11 2.3091 1.479 0.32 53.746 52.267 50.788
G 2 11 2.3091 1.479 0.32 59.614 58.135 56.656
G 2 1/4 11 2.3091 1.479 0.32 65.710 64.231 62.752
G 2 1/2 11 2.3091 1.479 0.32 75.184 73.705 72.226
G 2 3/4 11 2.3091 1.479 0.32 81.534 80.055 78.576
G 3 11 2.3091 1.479 0.32 87.884 86.405 84.926
G 3 1/2 11 2.3091 1.479 0.32 100.330 98.851 97.372
G 4 11 2.3091 1.479 0.32 113.030 111.551 110.072
G 4 1/2 11 2.3091 1.479 0.32 125.730 124.251 122.772
G 5 11 2.3091 1.479 0.32 138.430 136.951 135.472
G 5 1/2 11 2.3091 1.479 0.32 151.130 149.651 148.172
G 6 11 2.3091 1.479 0.32 163.830 162.351 160.872

  • 表中の管用平行ねじを表す記号Ｇは、必要に応じ省略してもよい。



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