Dimensions mm · values as the standard states them Size P s k fit js14 b r d2 d3 fit h14 l2 fit js15 z2 8 11
3
≥ 11
0.6
M6
14
Mass
≈ 1
10 13
4
≥ 14
0.6
M8
18
Mass
≈ 1
12 17
4
≥ 17
0.6
M10
20
Mass
≈ 1.6
14 19
4
≥ 20
0.6
M12
22
Mass
≈ 1.6
16 22
4.5
≥ 20
0.6
M12
25
Mass
≈ 1.6
18 24
5
≥ 20
1
M12
28
Mass
≈ 1.6
20 27
5
≥ 25
1
M16
30
Mass
≈ 2
22 30
5.5
≥ 25
1
M16
33
Mass
≈ 2
24 32
6
≥ 29
1
M20
36
Mass
≈ 2
27 36
6
≥ 29
1
M20
40
Mass
≈ 2
30 36
8
≥ 36
1
M24
44
Mass
≈ 2
33 41
8
≥ 36
1
M24
47
Mass
≈ 2
36 46
8
≥ 39
1
M27
50
Mass
≈ 2
40 50
8
≥ 42
1
M30
55
Mass
≈ 2
45 55
9
≥ 45
1
M33
60
Mass
≈ 2
50 60
9
≥ 49
1
M36
66
Mass
≈ 2
55 65
11
≥ 52
1
M39
73
Mass
≈ 3
60 70
12
≥ 58
1
M42
78
Mass
≈ 3
70 80
13
≥ 61
1
M45
90
Mass
≈ 3
80 90
13
≥ 68
1
M52
100
Mass
≈ 3
90 100
13
—
1
M56
110
Mass
≈ 3
100 110
13
≥ 84
1
M64
120
Mass
≈ 3
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 1445
8
s head width 11
k head height (fit js14) 3
b length of the thread ≥ 11
r 0.6
d2 the nominal diameter of the thread M6
d3 head diameter (fit h14) 14
l2 (fit js15) Mass
z2 taper ≈ 1 Size sheet · DIN 1445
10
s head width 13
k head height (fit js14) 4
b length of the thread ≥ 14
r 0.6
d2 the nominal diameter of the thread M8
d3 head diameter (fit h14) 18
l2 (fit js15) Mass
z2 taper ≈ 1 Size sheet · DIN 1445
12
s head width 17
k head height (fit js14) 4
b length of the thread ≥ 17
r 0.6
d2 the nominal diameter of the thread M10
d3 head diameter (fit h14) 20
l2 (fit js15) Mass
z2 taper ≈ 1.6 Size sheet · DIN 1445
14
s head width 19
k head height (fit js14) 4
b length of the thread ≥ 20
r 0.6
d2 the nominal diameter of the thread M12
d3 head diameter (fit h14) 22
l2 (fit js15) Mass
z2 taper ≈ 1.6 Size sheet · DIN 1445
16
s head width 22
k head height (fit js14) 4.5
b length of the thread ≥ 20
r 0.6
d2 the nominal diameter of the thread M12
d3 head diameter (fit h14) 25
l2 (fit js15) Mass
z2 taper ≈ 1.6 Size sheet · DIN 1445
18
s head width 24
k head height (fit js14) 5
b length of the thread ≥ 20
r 1
d2 the nominal diameter of the thread M12
d3 head diameter (fit h14) 28
l2 (fit js15) Mass
z2 taper ≈ 1.6 Size sheet · DIN 1445
20
s head width 27
k head height (fit js14) 5
b length of the thread ≥ 25
r 1
d2 the nominal diameter of the thread M16
d3 head diameter (fit h14) 30
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
22
s head width 30
k head height (fit js14) 5.5
b length of the thread ≥ 25
r 1
d2 the nominal diameter of the thread M16
d3 head diameter (fit h14) 33
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
24
s head width 32
k head height (fit js14) 6
b length of the thread ≥ 29
r 1
d2 the nominal diameter of the thread M20
d3 head diameter (fit h14) 36
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
27
s head width 36
k head height (fit js14) 6
b length of the thread ≥ 29
r 1
d2 the nominal diameter of the thread M20
d3 head diameter (fit h14) 40
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
30
s head width 36
k head height (fit js14) 8
b length of the thread ≥ 36
r 1
d2 the nominal diameter of the thread M24
d3 head diameter (fit h14) 44
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
33
s head width 41
k head height (fit js14) 8
b length of the thread ≥ 36
r 1
d2 the nominal diameter of the thread M24
d3 head diameter (fit h14) 47
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
36
s head width 46
k head height (fit js14) 8
b length of the thread ≥ 39
r 1
d2 the nominal diameter of the thread M27
d3 head diameter (fit h14) 50
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
40
s head width 50
k head height (fit js14) 8
b length of the thread ≥ 42
r 1
d2 the nominal diameter of the thread M30
d3 head diameter (fit h14) 55
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
45
s head width 55
k head height (fit js14) 9
b length of the thread ≥ 45
r 1
d2 the nominal diameter of the thread M33
d3 head diameter (fit h14) 60
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
50
s head width 60
k head height (fit js14) 9
b length of the thread ≥ 49
r 1
d2 the nominal diameter of the thread M36
d3 head diameter (fit h14) 66
l2 (fit js15) Mass
z2 taper ≈ 2 Size sheet · DIN 1445
55
s head width 65
k head height (fit js14) 11
b length of the thread ≥ 52
r 1
d2 the nominal diameter of the thread M39
d3 head diameter (fit h14) 73
l2 (fit js15) Mass
z2 taper ≈ 3 Size sheet · DIN 1445
60
s head width 70
k head height (fit js14) 12
b length of the thread ≥ 58
r 1
d2 the nominal diameter of the thread M42
d3 head diameter (fit h14) 78
l2 (fit js15) Mass
z2 taper ≈ 3 Size sheet · DIN 1445
70
s head width 80
k head height (fit js14) 13
b length of the thread ≥ 61
r 1
d2 the nominal diameter of the thread M45
d3 head diameter (fit h14) 90
l2 (fit js15) Mass
z2 taper ≈ 3 Size sheet · DIN 1445
80
s head width 90
k head height (fit js14) 13
b length of the thread ≥ 68
r 1
d2 the nominal diameter of the thread M52
d3 head diameter (fit h14) 100
l2 (fit js15) Mass
z2 taper ≈ 3 Size sheet · DIN 1445
90
s head width 100
k head height (fit js14) 13
r 1
d2 the nominal diameter of the thread M56
d3 head diameter (fit h14) 110
l2 (fit js15) Mass
z2 taper ≈ 3 Size sheet · DIN 1445
100
s head width 110
k head height (fit js14) 13
b length of the thread ≥ 84
r 1
d2 the nominal diameter of the thread M64
d3 head diameter (fit h14) 120
l2 (fit js15) Mass
z2 taper ≈ 3 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.
Data notes (1) 1 value(s) omitted after consistency checks: 90 b: value 7 breaks the size progression — omitted as a probable source typo