Dimensions mm · values as the standard states them Size P k h d2 d3 M2 0.4 2
2.5
9
4.5
M2.5 0.45 2.5
3
11
5
M3 0.5 2.5
3
12
6
M4 0.7 3.5
4
16
8
M5 0.8 4
5
20
10
M6 1 5
6
24
12
M8 1.25 6
8
30
16
M10 1.5 8
10
36
20
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 467
M2
k height knurled ring 2
h height of the nut 2.5
d2 9
d3 4.5 Thread · ISO 261/262
Pitch P 0.4
d2 1.74
d3 1.509
Tap drill 1.6
Stress area As 2.07 mm² Size sheet · DIN 467
M2.5
k height knurled ring 2.5
h height of the nut 3
d2 11
d3 5 Thread · ISO 261/262
Pitch P 0.45
d2 2.208
d3 1.948
Tap drill 2.05
Stress area As 3.39 mm² Size sheet · DIN 467
M3
k height knurled ring 2.5
h height of the nut 3
d2 12
d3 6 Thread · ISO 261/262
Pitch P 0.5
d2 2.675
d3 2.387
Tap drill 2.5
Stress area As 5.03 mm² Size sheet · DIN 467
M4
k height knurled ring 3.5
h height of the nut 4
d2 16
d3 8 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 467
M5
k height knurled ring 4
h height of the nut 5
d2 20
d3 10 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 467
M6
k height knurled ring 5
h height of the nut 6
d2 24
d3 12 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 467
M8
k height knurled ring 6
h height of the nut 8
d2 30
d3 16 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 467
M10
k height knurled ring 8
h height of the nut 10
d2 36
d3 20 Thread · ISO 261/262
Pitch P 1.5
d2 9.026
d3 8.16
Tap drill 8.5
Stress area As 57.99 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 Accessed 2026-09-23 · For design and safety-critical use, consult the current edition of the standard.