Dimensions mm · values as the standard states them 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 7604 C
M8x1
s width across flats 12
m head height 4
h (short, form A) 6
c thickness of the mounting collar 0.5
d2 the outer diameter of the ring shoulder 12 Thread · ISO 261/262
Pitch P 1
d2 7.35
d3 6.773
Tap drill 7
Stress area As 39.17 mm² Size sheet · DIN 7604 C
M10x1
s width across flats 14
m head height 4
h (short, form A) 6
c thickness of the mounting collar 0.5
d2 the outer diameter of the ring shoulder 14 Thread · ISO 261/262
Pitch P 1
d2 9.35
d3 8.773
Tap drill 9
Stress area As 64.49 mm² Size sheet · DIN 7604 C
M12x1.5
s width across flats 17
m head height 6
h (short, form A) 9
c thickness of the mounting collar 0.5
d2 the outer diameter of the ring shoulder 17 Thread · ISO 261/262
Pitch P 1.5
d2 11.026
d3 10.16
Tap drill 10.5
Stress area As 88.13 mm² Size sheet · DIN 7604 C
M14x1.5
s width across flats 19
m head height 6
h (short, form A) 9
c thickness of the mounting collar 0.5
d2 the outer diameter of the ring shoulder 19 Thread · ISO 261/262
Pitch P 1.5
d2 13.026
d3 12.16
Tap drill 12.5
Stress area As 124.55 mm² Size sheet · DIN 7604 C
M16x1.5
s width across flats 22
m head height 6
h (short, form A) 9
c thickness of the mounting collar 0.5
d2 the outer diameter of the ring shoulder 21 Thread · ISO 261/262
Pitch P 1.5
d2 15.026
d3 14.16
Tap drill 14.5
Stress area As 167.25 mm² Size sheet · DIN 7604 C
M18x1.5
m head height 6
h (short, form A) 9
c thickness of the mounting collar 2
d2 the outer diameter of the ring shoulder 23
t1 8 Thread · ISO 261/262
Pitch P 1.5
d2 17.026
d3 16.16
Tap drill 16.5
Stress area As 216.23 mm² Size sheet · DIN 7604 C
M22x1.5
m head height 6
h (long, form C) 12
h (short, form A) 9
c thickness of the mounting collar 2
d2 the outer diameter of the ring shoulder 27
t1 8.8 Thread · ISO 261/262
Pitch P 1.5
d2 21.026
d3 20.16
Tap drill 20.5
Stress area As 333.06 mm² Size sheet · DIN 7604 C
M26x1.5
s width across flats 22
m head height 8
h (long, form C) 12
h (short, form A) 9
c thickness of the mounting collar 2.5
d2 the outer diameter of the ring shoulder 31
t1 8.8 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) 2 value(s) omitted after consistency checks: M18x1.5 s: value 17 breaks the size progression — omitted as a probable source typo; M22x1.5 s: value 19 breaks the size progression — omitted as a probable source typo