Dimensions mm · values as the standard states them Size P k h b r o p q M24 3 18
18
100
1.6
24
3
65
M30 3.5 22
20
120
1.6
30
3.5
75
M36 4 25
25
140
2
36
4
85
M42 4.5 30
30
170
2
42
4.5
95
M48 5 35
30
200
2
48
5
110
M56 5.5 40
30
220
3
56
5.5
125
M64 6 50
30
240
3
64
6
140
M72 55
30
260
4
72
6
155
M80 60
30
290
4
80
6
170
M90 70
30
320
4
90
6
185
M100 75
30
350
5
100
6
205
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 7992
M24
k head height 18
h Rise of the head length 18
b thread length 100
r fillet radius 1.6
o thickness of the head 24
p 3
q head width 65 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 7992
M30
k head height 22
h Rise of the head length 20
b thread length 120
r fillet radius 1.6
o thickness of the head 30
p 3.5
q head width 75 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 7992
M36
k head height 25
h Rise of the head length 25
b thread length 140
r fillet radius 2
o thickness of the head 36
p 4
q head width 85 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 7992
M42
k head height 30
h Rise of the head length 30
b thread length 170
r fillet radius 2
o thickness of the head 42
p 4.5
q head width 95 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 7992
M48
k head height 35
h Rise of the head length 30
b thread length 200
r fillet radius 2
o thickness of the head 48
p 5
q head width 110 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 7992
M56
k head height 40
h Rise of the head length 30
b thread length 220
r fillet radius 3
o thickness of the head 56
p 5.5
q head width 125 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 7992
M64
k head height 50
h Rise of the head length 30
b thread length 240
r fillet radius 3
o thickness of the head 64
p 6
q head width 140 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 7992
M72
k head height 55
h Rise of the head length 30
b thread length 260
r fillet radius 4
o thickness of the head 72
p 6
q head width 155 Size sheet · DIN 7992
M80
k head height 60
h Rise of the head length 30
b thread length 290
r fillet radius 4
o thickness of the head 80
p 6
q head width 170 Size sheet · DIN 7992
M90
k head height 70
h Rise of the head length 30
b thread length 320
r fillet radius 4
o thickness of the head 90
p 6
q head width 185 Size sheet · DIN 7992
M100
k head height 75
h Rise of the head length 30
b thread length 350
r fillet radius 5
o thickness of the head 100
p 6
q head width 205 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.