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 7603 A
M4
d Inner diameter M24
d1 inside diameter 29
h thickness 2 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 7603 A
M5
d Inner diameter M24
d1 inside diameter 32
h thickness 2 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 7603 A
M6
d Inner diameter M27
d1 inside diameter 32
h thickness 2 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 7603 A
M6.5
d Inner diameter M27
d1 inside diameter 35
h thickness 2 Size sheet · DIN 7603 A
M8
d Inner diameter M48
d1 inside diameter 55
h thickness 2 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 7603 A
M10
d Inner diameter M22
d1 inside diameter 29
h thickness 1.5 Thread · ISO 261/262
Pitch P 1.5
d2 9.026
d3 8.16
Tap drill 8.5
Stress area As 57.99 mm² Size sheet · DIN 7603 A
M12
d Inner diameter M23
d1 inside diameter 28
h thickness 2 Thread · ISO 261/262
Pitch P 1.75
d2 10.863
d3 9.853
Tap drill 10.25
Stress area As 84.27 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.