Dimensions mm · values as the standard states them Size P e m k h d2 d3 d4 f g fit h13 l mass r1 r2 r3 M8 1.25 6
10
8
36
20
36
20
2.5
6
13
0.06
4
1
1
M10 1.5 8
12
10
45
25
45
25
3
7.7
17
0.11
4
1
1
M12 1.75 10
14
12
53
30
54
30
3.5
9.4
20.5
0.18
6
2
1.2
M16 2 12
16
14
62
35
63
35
4
13
27
0.28
6
2
1.2
M20 2.5 14
19
16
71
40
72
40
5
16.4
30
0.45
8
2
1.6
M24 3 18
24
20
90
50
90
50
6
19.6
36
0.74
12
2
2
M30 3.5 22
28
24
109
65
108
60
7
25
45
1.66
15
3
2
M36 4 26
32
28
128
75
126
70
8
30.3
54
2.65
18
3
2
M42 4.5 30
38
32
147
85
144
80
6
35.6
63
4.03
20
3
2.5
M48 5 35
46
38
168
100
166
90
10
41
68
6.38
22
4
2.5
M56 5.5 38
50
42
187
110
184
100
11
48.3
78
8.8
25
4
3
M64 6 42
58
48
208
120
206
110
12
55.7
90
12.4
25
4
3
M72x6 6 50
72
60
260
150
260
140
12
63.7
100
23.3
35
4
3
M80x6 6 55
80
68
298
170
296
160
12
71.7
112
34.2
35
4
3
M100x6 6 60
88
75
330
190
330
180
12
91.7
130
49.1
40
4
3
Ranges read min – max; ≤ / ≥ where the standard gives one limit, ≈ for approximate values. Sizes in (brackets) are non-preferred. Select a row for its size sheet.
Size sheet · DIN 580
M8
e width across corners 6
m 10
k head height 8
h height 36
d2 head diameter 20
d3 36
d4 20
f 2.5
g (fit h13) 6
l length of bolt 13
mass mass per 1000 pieces (kg) 0.06
r1 4
r2 1
r3 1 Thread · ISO 261/262
Pitch P 1.25
d2 7.188
d3 6.466
Tap drill 6.75
Stress area As 36.61 mm² Size sheet · DIN 580
M10
e width across corners 8
m 12
k head height 10
h height 45
d2 head diameter 25
d3 45
d4 25
f 3
g (fit h13) 7.7
l length of bolt 17
mass mass per 1000 pieces (kg) 0.11
r1 4
r2 1
r3 1 Thread · ISO 261/262
Pitch P 1.5
d2 9.026
d3 8.16
Tap drill 8.5
Stress area As 57.99 mm² Size sheet · DIN 580
M12
e width across corners 10
m 14
k head height 12
h height 53
d2 head diameter 30
d3 54
d4 30
f 3.5
g (fit h13) 9.4
l length of bolt 20.5
mass mass per 1000 pieces (kg) 0.18
r1 6
r2 2
r3 1.2 Thread · ISO 261/262
Pitch P 1.75
d2 10.863
d3 9.853
Tap drill 10.25
Stress area As 84.27 mm² Size sheet · DIN 580
M16
e width across corners 12
m 16
k head height 14
h height 62
d2 head diameter 35
d3 63
d4 35
f 4
g (fit h13) 13
l length of bolt 27
mass mass per 1000 pieces (kg) 0.28
r1 6
r2 2
r3 1.2 Thread · ISO 261/262
Pitch P 2
d2 14.701
d3 13.546
Tap drill 14
Stress area As 156.67 mm² Size sheet · DIN 580
M20
e width across corners 14
m 19
k head height 16
h height 71
d2 head diameter 40
d3 72
d4 40
f 5
g (fit h13) 16.4
l length of bolt 30
mass mass per 1000 pieces (kg) 0.45
r1 8
r2 2
r3 1.6 Thread · ISO 261/262
Pitch P 2.5
d2 18.376
d3 16.933
Tap drill 17.5
Stress area As 244.79 mm² Size sheet · DIN 580
M24
e width across corners 18
m 24
k head height 20
h height 90
d2 head diameter 50
d3 90
d4 50
f 6
g (fit h13) 19.6
l length of bolt 36
mass mass per 1000 pieces (kg) 0.74
r1 12
r2 2
r3 2 Thread · ISO 261/262
Pitch P 3
d2 22.051
d3 20.319
Tap drill 21
Stress area As 352.5 mm² Size sheet · DIN 580
M30
e width across corners 22
m 28
k head height 24
h height 109
d2 head diameter 65
d3 108
d4 60
f 7
g (fit h13) 25
l length of bolt 45
mass mass per 1000 pieces (kg) 1.66
r1 15
r2 3
r3 2 Thread · ISO 261/262
Pitch P 3.5
d2 27.727
d3 25.706
Tap drill 26.5
Stress area As 560.59 mm² Size sheet · DIN 580
M36
e width across corners 26
m 32
k head height 28
h height 128
d2 head diameter 75
d3 126
d4 70
f 8
g (fit h13) 30.3
l length of bolt 54
mass mass per 1000 pieces (kg) 2.65
r1 18
r2 3
r3 2 Thread · ISO 261/262
Pitch P 4
d2 33.402
d3 31.093
Tap drill 32
Stress area As 816.72 mm² Size sheet · DIN 580
M42
e width across corners 30
m 38
k head height 32
h height 147
d2 head diameter 85
d3 144
d4 80
f 6
g (fit h13) 35.6
l length of bolt 63
mass mass per 1000 pieces (kg) 4.03
r1 20
r2 3
r3 2.5 Thread · ISO 261/262
Pitch P 4.5
d2 39.077
d3 36.479
Tap drill 37.5
Stress area As 1120.91 mm² Size sheet · DIN 580
M48
e width across corners 35
m 46
k head height 38
h height 168
d2 head diameter 100
d3 166
d4 90
f 10
g (fit h13) 41
l length of bolt 68
mass mass per 1000 pieces (kg) 6.38
r1 22
r2 4
r3 2.5 Thread · ISO 261/262
Pitch P 5
d2 44.752
d3 41.866
Tap drill 43
Stress area As 1473.15 mm² Size sheet · DIN 580
M56
e width across corners 38
m 50
k head height 42
h height 187
d2 head diameter 110
d3 184
d4 100
f 11
g (fit h13) 48.3
l length of bolt 78
mass mass per 1000 pieces (kg) 8.8
r1 25
r2 4
r3 3 Thread · ISO 261/262
Pitch P 5.5
d2 52.428
d3 49.252
Tap drill 50.5
Stress area As 2030.02 mm² Size sheet · DIN 580
M64
e width across corners 42
m 58
k head height 48
h height 208
d2 head diameter 120
d3 206
d4 110
f 12
g (fit h13) 55.7
l length of bolt 90
mass mass per 1000 pieces (kg) 12.4
r1 25
r2 4
r3 3 Thread · ISO 261/262
Pitch P 6
d2 60.103
d3 56.639
Tap drill 58
Stress area As 2675.97 mm² Size sheet · DIN 580
M72x6
e width across corners 50
m 72
k head height 60
h height 260
d2 head diameter 150
d3 260
d4 140
f 12
g (fit h13) 63.7
l length of bolt 100
mass mass per 1000 pieces (kg) 23.3
r1 35
r2 4
r3 3 Size sheet · DIN 580
M80x6
e width across corners 55
m 80
k head height 68
h height 298
d2 head diameter 170
d3 296
d4 160
f 12
g (fit h13) 71.7
l length of bolt 112
mass mass per 1000 pieces (kg) 34.2
r1 35
r2 4
r3 3 Size sheet · DIN 580
M100x6
e width across corners 60
m 88
k head height 75
h height 330
d2 head diameter 190
d3 330
d4 180
f 12
g (fit h13) 91.7
l length of bolt 130
mass mass per 1000 pieces (kg) 49.1
r1 40
r2 4
r3 3 Provenance
Draft — values taken from a single source and not yet cross-checked.
fasteners.eu dimensions, lengths, materials, property classes, current norm, equivalent norms Otto Roth status Accessed 2026-09-23 · For design and safety-critical use, consult the current edition of the standard.
Data notes (1) Sources disagree on the status: fasteners.eu lists it as current, the Otto Roth DIN→EN/ISO handbook lists it as withdrawn.