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 · ISO 4028
1.75
t groove depth 1,2/2
z 1.5 Standard lengths
3 · 4 · 5 · 6 · 8 · 10 · 12 · 16 · 20
Size sheet · ISO 4028
2.25
t groove depth 1,5/2,5
z 2 Standard lengths
4 · 5 · 6 · 8 · 10 · 12 · 16 · 20 · 25 · 30
Size sheet · ISO 4028
3.2
t groove depth 2/3
z 2.5 Standard lengths
5 · 6 · 8 · 10 · 12 · 16 · 20 · 25 · 30
Size sheet · ISO 4028
3.7
t groove depth 2/3,5
z 3 Standard lengths
6 · 8 · 10 · 12 · 16 · 20 · 25 · 30 · 35 · 40 · 45 · 50
Size sheet · ISO 4028
5.2
t groove depth 3/5
z 4 Standard lengths
8 · 10 · 12 · 16 · 20 · 25 · 30 · 35 · 40 · 45 · 50 · 60
Size sheet · ISO 4028
6.64
t groove depth 4/6
z 5 Standard lengths
10 · 12 · 16 · 20 · 25 · 30 · 35 · 40 · 50
Size sheet · ISO 4028
8.14
t groove depth 4,8/8
z 6 Standard lengths
12 · 16 · 20 · 25 · 30 · 35 · 40 · 45 · 50 · 60
Provenance
Draft — values taken from a single source and not yet cross-checked.
Accessed 2026-09-23 · For design and safety-critical use, consult the current edition of the standard.
Data notes (1) The source publishes one identical table for DIN 915, ISO 4028. The DIN and ISO versions are dimensionally identical per the Würth DIN→ISO changeover table; not independently verified against the ISO preview.