六角ボルト(全ねじ)

ねじの呼び ピッチ
P

k

s

e

基準
寸法
許容差 基準
寸法
許容差

M3

0.5

2

±0.1

5.5 0
-0.2
6.4

M4

0.7

2.8 ±0.1 7 0
-0.2
8.1

M5

0.8

3.5 ±0.15 8 0
-0.2
9.2

M6

1.0

4 ±0.15 10 0
-0.2
11.5

M8

1.25

5.5

±0.15 13 0
-0.25
15

M10

1.5

7 ±0.2 17 0
-0.25
19.6

M12

1.75

8 ±0.2 19 0
-0.35
21.9
(M14) 2.0 9 ±0.2 22 0
-0.35
25.4

M16

2.0

10 ±0.2 24 0
-0.35
27.7

(M18)

2.5

12

±0.2 27 0
-0.35
31.2
M20 2.5 13 ±0.2 30 0
-0.35
34.6
(M22) 2.5 14 ±0.2 32 0
-0.4
37
M24 3.0 15 ±0.2 36 0
-0.4
41.6
M27 3.0 17 ±0.2 41 0
-0.4
47.3
M30 3.5 19 ±0.25 46 0
-0.4
53.1
(M33) 3.5 21 ±0.25 50 0
-0.4
57.7
M36 4.0 23 ±0.25 55 0
-0.45
63.5
M42 4.5 26 ±0.25 65 0
-0.45
75

 

六角ボルト(全ねじ/ウィット)

ねじの呼び ピッチ
吋/山

s

k
3/16

24

8 3.5

1/4

20 10 4.5

5/16

18 12 6.5

3/8

16 14 7.5

7/16

14 17 9

1/2

12 21 9

5/8

11 26 11
3/4 10 32 13

 

六角ボルト(日規)

ねじの呼び

s

k
W5/16 14 5.5

W3/8

17 6

W1/2

21 9

W5/8

26 11

W3/4

32 13

W7/8

35 17

W1"

41 19

 

六角ボルト(半ねじ)

ねじの呼び ds

k

s

e
基準
寸法

許容差

基準
寸法

許容差

基準
寸法

許容差

M3 3 0
-0.1
    2 ±0.1     5.5 0
-0.2
    6.4
(M3.5) 3.5 0
-0.1
    2.4 ±0.1     6 0
-0.2
    6.9

M4

4 0
-0.1
    2.8 ±0.1     7 0
-0.2
    8.1
(M4.5) 4.5 0
-0.1
    3.2 ±0.15     8 0
-0.2
    9.2

M5

5 0
-0.1
    3.5 ±0.15     8 0
-0.2
    9.2

M6

6 0
-0.1
0
-0.2
+0.6
-0.15
4 ±0.15 ±0.25 ±0.6 10 0
-0.2
0
-0.6
0
-0.6
11.5
(M7) 7 0
-0.15
0
-0.2
+0.7
-0.2
5 ±0.15 ±0.25 ±0.6 11 0
-0.25
0
-0.7
0
-0.7
12.7

M8

8 0
-0.15
0
-0.2
+0.7
-0.2
5.5 ±0.15 ±0.25 ±0.6 13 0
-0.25
0
-0.7
0
-0.7
15

M10

10 0
-0.15
0
-0.2
+0.7
-0.2
7 ±0.2 ±0.3 ±0.8 17 0
-0.25
0
-0.7
0
-0.7
19.6

M12

12 0
-0.2
0
-0.25
+0.9
-0.2
8 ±0.2 ±0.3 ±0.8 19 0
-0.35
0
-0.8
0
-0.8
21.9
(M14) 14 0
-0.2
0
-0.25
+0.9
-0.2
9 ±0.2 ±0.3 ±0.8 22 0
-0.35
0
-0.8
0
-0.8
25.4

M16

16 0
-0.2
0
-0.25
+0.9
-0.2
10 ±0.2 ±0.3 ±0.8 24 0
-0.35
0
-0.8
0
-0.8
27.7

(M18)

18 0
-0.2
0
-0.25
+0.9
-0.2
12 ±0.2 ±0.35 ±0.9 27 0
-0.35
0
-0.8
0
-0.8
31.2
M20 20 0
-0.2
0
-0.35
+0.95
-0.35
13 ±0.2 ±0.35 ±0.9 30 0
-0.35
0
-0.8
0
-0.8
34.6
(M22) 22 0
-0.2
0
-0.35
+0.95
-0.35
14 ±0.2 ±0.35 ±0.9 32 0
-0.4
0
-1.0
0
-1.0
37
M24 24 0
-0.2
0
-0.35
+0.95
-0.35
15 ±0.2 ±0.35 ±0.9 36 0
-0.4
0
-1.0
0
-1.0
41.6
(M27) 27 0
-0.2
0
-0.35
+0.95
-0.35
17 ±0.25 ±0.4 ±1.0 41 0
-0.4
0
-1.0
0
-1.0
47.3
M30 30 0
-0.2
0
-0.35
+0.95
-0.35
19 ±0.25 ±0.4 ±1.0 46 0
-0.4
0
-1.0
0
-1.0
53.1
(M33) 33 0
-0.25
0
-0.4
+1.2
-0.4
21 ±0.25 ±0.4 ±1.0 50 0
-0.4
0
-1.0
0
-1.0
57.7
M36 36 0
-0.25
0
-0.4
+1.2
-0.4
23 ±0.25 ±0.4 ±1.0 55 0
-0.45
0
-1.2
0
-1.2
63.5
(M39) 39 0
-0.25
0
-0.4
+1.2
-0.4
25 ±0.25 ±0.4 ±1.0 60 0
-0.45
0
-1.2
0
-1.2
69.3
M42 42 0
-0.25
0
-0.4
+1.2
-0.4
26 ±0.25 ±0.4 ±1.0 65 0
-0.45
0
-1.2
0
-1.2
75
(M45) 45 0
-0.25
0
-0.4
+1.2
-0.4
28 ±0.25 ±0.4 ±1.0 70 0
-0.45
0
-1.2
0
-1.2
80.8
M48 48 0
-0.25
0
-0.4
+1.2
-0.4
30 ±0.25 ±0.4 ±1.0 75 0
-0.45
0
-1.2
0
-1.2
86.5
(M52) 52 0
-0.3
0
-0.45
+1.2
-0.7
33 ±0.3 ±0.5 ±1.5 80 0
-0.45
0
-1.2
0
-1.2
92.4
M56 56 0
-0.3
0
-0.45
  35 ±0.3 ±0.5   85 0
-0.55
0
-1.4
  98.1
(M60) 60 0
-0.3
0
-0.45
  38 ±0.3 ±0.5   90 0
-0.55
0
-1.4
  104
M64 64 0
-0.3
0
-0.45
  40 ±0.3 ±0.5   95 0
-0.55
0
-1.4
  110
(M68) 68 0
-0.3
0
-0.45
  43 ±0.3 ±0.5   100 0
-0.55
0
-1.4
  115
M72 72 0
-0.3
0
-0.45
  45 ±0.3 ±0.5   105 0
-0.55
0
-1.4
  121
(M76) 76 0
-0.3
0
-0.45
  48 ±0.3 ±0.5   110 0
-0.55
0
-1.4
  127
M80 80 0
-0.3
0
-0.45
  50 ±0.3 ±0.5   115 0
-0.55
0
-1.4
  133

 

六角ボルト(−)

ねじの呼び ピッチ
P

k

s

e

すり割り
基準
寸法
許容差 基準
寸法
許容差

a b

M4

0.7

2.8 ±0.1 7 0
-0.2
8.1 1.0 1.2

M5

0.8

3.5 ±0.15 8 0
-0.2
9.2 1.2 1.6

M6

1.0

4 ±0.15 10 0
-0.2
11.5 1.3 1.8

M8

1.25

5.5

±0.15 13 0
-0.25
15 1.6 2.2

M10

1.5

7 ±0.2 17 0
-0.25
19.6 2.0 2.5