Dimensions mm · values as the standard states them Size P ds dk k h b c r t n M1 0.25 2.8
2.55 – 2.8
5.5
5.26 – 5.74
1.5
1.25 – 1.5
3.5
3.26 – 3.74
3
Edgeschamfored
0.5
0.7 – 0.9
0.3
0.36 – 0.5
M1.2 0.25 3
2.75 – 3
6
5.76 – 6.24
1.5
1.25 – 1.5
4
3.76 – 4.24
3.5
Edgeschamfored
0.5
0.8 – 1
0.4
0.46 – 0.6
M1.4 0.3 3.5
3.2 – 3.5
7
6.71 – 7.29
2
1.75 – 2
4.7
4.46 – 4.94
4
Edgeschamfored
0.5
0.9 – 1.15
0.4
0.46 – 0.6
M1.6 0.35 3.8
3.5 – 3.8
7.5
7.21 – 7.79
2
1.75 – 2
5
4.76 – 5.24
5
Edgeschamfored
0.5
1 – 1.3
0.4
0.46 – 0.6
M2 0.4 4.5
4.2 – 4.5
9
8.71 – 9.29
2
1.75 – 2
5.3
5.06 – 5.54
6
0.3
0.5
1.1 – 1.4
0.5
0.56 – 0.7
M2.5 0.45 5
4.7 – 5
11
10.65 – 11.35
2.5
2.25 – 2.5
6.5
6.21 – 6.79
8
0.3
0.5
1.5 – 1.8
0.6
0.66 – 0.8
M3 0.5 6
5.7 – 6
12
11.65 – 12.35
2.5
2.25 – 2.5
7.5
7.21 – 7.79
9
0.4
0.5
1.8 – 2.2
0.8
0.86 – 1
(M3.5) 0.6 7
6.64 – 7
14
13.65 – 14.35
3
2.75 – 3
8.5
8.21 – 8.79
10
0.4
0.5
2 – 2.5
0.8
0.86 – 1
M4 0.7 8
7.64 – 8
16
15.65 – 16.35
3.5
3.2 – 3.5
9.5
9.21 – 9.79
12
0.4
0.5
2.2 – 2.7
1
1.06 – 1.2
M5 0.8 10
9.64 – 10
20
19.58 – 20.42
4
3.7 – 4
11.5
11.15 – 11.85
15
0.5
1
2.8 – 3.4
1.2
1.26 – 1.51
M6 1 12
11.57 – 12
24
23.58 – 24.42
5
4.7 – 5
15
14.65 – 15.35
18
0.6
1
3.5 – 4.3
1.6
1.66 – 1.91
M8 1.25 16
15.57 – 16
30
29.58 – 30.42
6
5.7 – 6
18
17.65 – 18.35
24
0.6
2
4.5 – 5.5
2
2.06 – 2.31
M10 1.5 20
19.48 – 20
36
35.5 – 36.5
8
7.64 – 8
23
22.58 – 23.42
30
—
2
6 – 7
2.5
2.56 – 2.81
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.
Length tolerances 2 1.9 – 2.1
3 2.9 – 3.1
4 3.9 – 4.1
5 4.8 – 5.2
6 5.8 – 5.2
8 7.8 – 8.2
10 9.7 – 10.3
12 11.7 – 12.3
14 13.7 – 14.3
16 15.7 – 16.3
18 17.7 – 18.3
20 19.6 – 20.4
22 21.6 – 22.4
25 24.6 – 25.4
28 27.6 – 28.4
30 29.6 – 30.4
32 31.5 – 32.5
35 34.5 – 35.5
38 37.5 – 38.5
40 39.5 – 40.5
Size sheet · DIN 464
M1
ds shank diameter 2.8
dk head diameter 5.5
k head height 1.5
h head height including stem 3.5
b thread length 3
c chamfer Edgeschamfored
r fillet radius 0.5
t 0.7 – 0.9
n 0.3 Thread · ISO 261/262
Pitch P 0.25
d2 0.838
d3 0.693
Tap drill 0.75
Stress area As 0.46 mm² Standard lengths
2 · 3 · 4 · 5
Size sheet · DIN 464
M1.2
ds shank diameter 3
dk head diameter 6
k head height 1.5
h head height including stem 4
b thread length 3.5
c chamfer Edgeschamfored
r fillet radius 0.5
t 0.8 – 1
n 0.4 Thread · ISO 261/262
Pitch P 0.25
d2 1.038
d3 0.893
Tap drill 0.95
Stress area As 0.73 mm² Standard lengths
2 · 3 · 4 · 5
Size sheet · DIN 464
M1.4
ds shank diameter 3.5
dk head diameter 7
k head height 2
h head height including stem 4.7
b thread length 4
c chamfer Edgeschamfored
r fillet radius 0.5
t 0.9 – 1.15
n 0.4 Thread · ISO 261/262
Pitch P 0.3
d2 1.205
d3 1.032
Tap drill 1.1
Stress area As 0.98 mm² Standard lengths
2 · 3 · 4 · 5 · 6
Size sheet · DIN 464
M1.6
ds shank diameter 3.8
dk head diameter 7.5
k head height 2
h head height including stem 5
b thread length 5
c chamfer Edgeschamfored
r fillet radius 0.5
t 1 – 1.3
n 0.4 Thread · ISO 261/262
Pitch P 0.35
d2 1.373
d3 1.171
Tap drill 1.25
Stress area As 1.27 mm² Standard lengths
2 · 3 · 4 · 5 · 6 · 8
Size sheet · DIN 464
M2
ds shank diameter 4.5
dk head diameter 9
k head height 2
h head height including stem 5.3
b thread length 6
c chamfer 0.3
r fillet radius 0.5
t 1.1 – 1.4
n 0.5 Thread · ISO 261/262
Pitch P 0.4
d2 1.74
d3 1.509
Tap drill 1.6
Stress area As 2.07 mm² Standard lengths
3 · 4 · 5 · 6 · 8 · 10
Size sheet · DIN 464
M2.5
ds shank diameter 5
dk head diameter 11
k head height 2.5
h head height including stem 6.5
b thread length 8
c chamfer 0.3
r fillet radius 0.5
t 1.5 – 1.8
n 0.6 Thread · ISO 261/262
Pitch P 0.45
d2 2.208
d3 1.948
Tap drill 2.05
Stress area As 3.39 mm² Standard lengths
3 · 4 · 5 · 6 · 8 · 10 · 12
Size sheet · DIN 464
M3
ds shank diameter 6
dk head diameter 12
k head height 2.5
h head height including stem 7.5
b thread length 9
c chamfer 0.4
r fillet radius 0.5
t 1.8 – 2.2
n 0.8 Thread · ISO 261/262
Pitch P 0.5
d2 2.675
d3 2.387
Tap drill 2.5
Stress area As 5.03 mm² Standard lengths
4 · 5 · 6 · 8 · 10 · 12 · 14 · 16
Size sheet · DIN 464
M3.5
ds shank diameter 7
dk head diameter 14
k head height 3
h head height including stem 8.5
b thread length 10
c chamfer 0.4
r fillet radius 0.5
t 2 – 2.5
n 0.8 Thread · ISO 261/262
Pitch P 0.6
d2 3.11
d3 2.764
Tap drill 2.9
Stress area As 6.78 mm² Standard lengths
5 · 6 · 8 · 10 · 12 · 14 · 16
Size sheet · DIN 464
M4
ds shank diameter 8
dk head diameter 16
k head height 3.5
h head height including stem 9.5
b thread length 12
c chamfer 0.4
r fillet radius 0.5
t 2.2 – 2.7
n 1 Thread · ISO 261/262
Pitch P 0.7
d2 3.545
d3 3.141
Tap drill 3.3
Stress area As 8.78 mm² Standard lengths
5 · 6 · 8 · 10 · 12 · 14 · 16 · 18
Size sheet · DIN 464
M5
ds shank diameter 10
dk head diameter 20
k head height 4
h head height including stem 11.5
b thread length 15
c chamfer 0.5
r fillet radius 1
t 2.8 – 3.4
n 1.2 Thread · ISO 261/262
Pitch P 0.8
d2 4.48
d3 4.019
Tap drill 4.2
Stress area As 14.18 mm² Standard lengths
6 · 8 · 10 · 12 · 14 · 16 · 18 · 20
Size sheet · DIN 464
M6
ds shank diameter 12
dk head diameter 24
k head height 5
h head height including stem 15
b thread length 18
c chamfer 0.6
r fillet radius 1
t 3.5 – 4.3
n 1.6 Thread · ISO 261/262
Pitch P 1
d2 5.35
d3 4.773
Tap drill 5
Stress area As 20.12 mm² Standard lengths
8 · 10 · 12 · 14 · 16 · 18 · 20 · 22 · 25
Size sheet · DIN 464
M8
ds shank diameter 16
dk head diameter 30
k head height 6
h head height including stem 18
b thread length 24
c chamfer 0.6
r fillet radius 2
t 4.5 – 5.5
n 2 Thread · ISO 261/262
Pitch P 1.25
d2 7.188
d3 6.466
Tap drill 6.75
Stress area As 36.61 mm² Standard lengths
12 · 14 · 16 · 18 · 20 · 22 · 25 · 28
Size sheet · DIN 464
M10
ds shank diameter 20
dk head diameter 36
k head height 8
h head height including stem 23
b thread length 30
r fillet radius 2
t 6 – 7
n 2.5 Thread · ISO 261/262
Pitch P 1.5
d2 9.026
d3 8.16
Tap drill 8.5
Stress area As 57.99 mm² Standard lengths
18 · 20 · 22 · 25 · 28 · 30 · 32 · 35 · 38 · 40
Provenance
Draft — values taken from a single source and not yet cross-checked.
fasteners.eu dimensions, lengths, materials, property classes, current norm, equivalent norms Accessed 2026-09-23 · For design and safety-critical use, consult the current edition of the standard.