Dimensions mm · values as the standard states them Size P d e k h a F f mass M4 0.7 5
8.5 – 9
2.7 – 3
6.5
5
4.5 – 4.7
≥ 7
1
2.5
M5 0.8 6
9.5 – 10
3.5 – 4
8
6
5.5 – 5.7
≥ 11.4
1.6
4
M6 1 8
12.5 – 13
5.5 – 6
10
8
7.5 – 7.7
≥ 16
1.6
10
M8 1.25 10
14.5 – 15
5.5 – 6
12
10
9.5 – 9.7
≥ 29
1.6
18
M10 1.5 12
17.5 – 18
6.5 – 7
14
12
11.4 – 11.7
≥ 46
2.5
24
M12 1.75 14
21.5 – 22
7.5 – 8
16
14
13.4 – 13.7
≥ 67
2.5
35
M16 2 18
27.5 – 28
9.5 – 10
20
18
17.4 – 17.7
≥ 128
2.5
75
M20 2.5 22
34.5 – 35
13.5 – 14
28
22
21.4 – 21.7
≥ 196
2.5
165
M24 3 28
43 – 44
17 – 18
36
28
27.4 – 27.7
≥ 282
4
345
M30 3.5 36
53 – 54
21 – 22
44
36
35.3 – 35.6
≥ 448
6
770
M36 4 42
54 – 65
25 – 26
52
42
41.3 – 41.6
≥ 653
6
1030
M42 4.5 48
74 – 75
29 – 30
60
48
47.3 – 47.6
≥ 653
6
1550
M48 5 54
84 – 85
33 – 34
70
54
53.2 – 53.6
≥ 653
6
2300
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 508
M4
d the nominal diameter of the thread 5
e width across corners 8.5 – 9
k head height 2.7 – 3
h height of the nut 6.5
a side length 5
F ≥ 7
f 1
mass mass per 1000 pieces (kg) 2.5 Thread · ISO 261/262
Pitch P 0.7
d2 3.545
d3 3.141
Tap drill 3.3
Stress area As 8.78 mm² Size sheet · DIN 508
M5
d the nominal diameter of the thread 6
e width across corners 9.5 – 10
k head height 3.5 – 4
h height of the nut 8
a side length 6
F ≥ 11.4
f 1.6
mass mass per 1000 pieces (kg) 4 Thread · ISO 261/262
Pitch P 0.8
d2 4.48
d3 4.019
Tap drill 4.2
Stress area As 14.18 mm² Size sheet · DIN 508
M6
d the nominal diameter of the thread 8
e width across corners 12.5 – 13
k head height 5.5 – 6
h height of the nut 10
a side length 8
F ≥ 16
f 1.6
mass mass per 1000 pieces (kg) 10 Thread · ISO 261/262
Pitch P 1
d2 5.35
d3 4.773
Tap drill 5
Stress area As 20.12 mm² Size sheet · DIN 508
M8
d the nominal diameter of the thread 10
e width across corners 14.5 – 15
k head height 5.5 – 6
h height of the nut 12
a side length 10
F ≥ 29
f 1.6
mass mass per 1000 pieces (kg) 18 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 508
M10
d the nominal diameter of the thread 12
e width across corners 17.5 – 18
k head height 6.5 – 7
h height of the nut 14
a side length 12
F ≥ 46
f 2.5
mass mass per 1000 pieces (kg) 24 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 508
M12
d the nominal diameter of the thread 14
e width across corners 21.5 – 22
k head height 7.5 – 8
h height of the nut 16
a side length 14
F ≥ 67
f 2.5
mass mass per 1000 pieces (kg) 35 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 508
M16
d the nominal diameter of the thread 18
e width across corners 27.5 – 28
k head height 9.5 – 10
h height of the nut 20
a side length 18
F ≥ 128
f 2.5
mass mass per 1000 pieces (kg) 75 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 508
M20
d the nominal diameter of the thread 22
e width across corners 34.5 – 35
k head height 13.5 – 14
h height of the nut 28
a side length 22
F ≥ 196
f 2.5
mass mass per 1000 pieces (kg) 165 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 508
M24
d the nominal diameter of the thread 28
e width across corners 43 – 44
k head height 17 – 18
h height of the nut 36
a side length 28
F ≥ 282
f 4
mass mass per 1000 pieces (kg) 345 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 508
M30
d the nominal diameter of the thread 36
e width across corners 53 – 54
k head height 21 – 22
h height of the nut 44
a side length 36
F ≥ 448
f 6
mass mass per 1000 pieces (kg) 770 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 508
M36
d the nominal diameter of the thread 42
e width across corners 54 – 65
k head height 25 – 26
h height of the nut 52
a side length 42
F ≥ 653
f 6
mass mass per 1000 pieces (kg) 1030 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 508
M42
d the nominal diameter of the thread 48
e width across corners 74 – 75
k head height 29 – 30
h height of the nut 60
a side length 48
F ≥ 653
f 6
mass mass per 1000 pieces (kg) 1550 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 508
M48
d the nominal diameter of the thread 54
e width across corners 84 – 85
k head height 33 – 34
h height of the nut 70
a side length 54
F ≥ 653
f 6
mass mass per 1000 pieces (kg) 2300 Thread · ISO 261/262
Pitch P 5
d2 44.752
d3 41.866
Tap drill 43
Stress area As 1473.15 mm² 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 (2) Sources disagree on the status: fasteners.eu lists it as current, the Otto Roth DIN→EN/ISO handbook lists it as withdrawn. The source publishes one identical table for DIN 508, ISO 299. Kept as the DIN table (the source lists the DIN as the current norm); equivalence with the ISO standard is not verified.