Dimensions mm · values as the standard states them Size P ds dk k b g i p r1 M8 1.25 8
16.55
6.38
22-28
3
2.3
1.25
8.9
M10 1.5 10
19.65
7.45
26-32
3.2
2.7
1.5
10.5
M12 1.75 12
24.65
9.65
30-36
3.6
3.2
1.75
13.3
M16 2 16
30.65
11.75
38-57
4.2
3.5
2
15.8
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 607
M8
ds shank diameter 8
dk head diameter 16.55
k head height 6.38
b thread length 22-28
g width of the nib 3
i height of the nose 2.3
p 1.25
r1 radius 8.9 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
30 · 35 · 40 · 45 · 50 · 55 · 60 · 65 · 70 · 80
Size sheet · DIN 607
M10
ds shank diameter 10
dk head diameter 19.65
k head height 7.45
b thread length 26-32
g width of the nib 3.2
i height of the nose 2.7
p 1.5
r1 radius 10.5 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
35 · 40 · 45 · 50 · 55 · 60 · 65 · 70 · 80 · 90 · 100
Size sheet · DIN 607
M12
ds shank diameter 12
dk head diameter 24.65
k head height 9.65
b thread length 30-36
g width of the nib 3.6
i height of the nose 3.2
p 1.75
r1 radius 13.3 Thread · ISO 261/262
Pitch P 1.75
d2 10.863
d3 9.853
Tap drill 10.25
Stress area As 84.27 mm² Standard lengths
40 · 45 · 50 · 55 · 60 · 65 · 70 · 80 · 90 · 100 · 110 · 120
Size sheet · DIN 607
M16
ds shank diameter 16
dk head diameter 30.65
k head height 11.75
b thread length 38-57
g width of the nib 4.2
i height of the nose 3.5
p 2
r1 radius 15.8 Thread · ISO 261/262
Pitch P 2
d2 14.701
d3 13.546
Tap drill 14
Stress area As 156.67 mm² Standard lengths
45 · 50 · 55 · 60 · 65 · 70 · 80 · 90 · 100 · 110 · 120 · 130 · 140 · 150 · 160
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.