Dimensions mm · values as the standard states them Size P c r 2 ≤ 0.3
2
3 ≤ 0.45
3
4 ≤ 0.6
4
5 ≤ 0.75
5
6 ≤ 0.9
6
8 ≤ 1.2
8
10 ≤ 1.5
10
12 ≤ 1.8
12
16 ≤ 2.5
16
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 2339
2
c height of the ball end ≤ 0.3
r radius 2 Size sheet · ISO 2339
3
c height of the ball end ≤ 0.45
r radius 3 Size sheet · ISO 2339
4
c height of the ball end ≤ 0.6
r radius 4 Size sheet · ISO 2339
5
c height of the ball end ≤ 0.75
r radius 5 Size sheet · ISO 2339
6
c height of the ball end ≤ 0.9
r radius 6 Size sheet · ISO 2339
8
c height of the ball end ≤ 1.2
r radius 8 Size sheet · ISO 2339
10
c height of the ball end ≤ 1.5
r radius 10 Size sheet · ISO 2339
12
c height of the ball end ≤ 1.8
r radius 12 Size sheet · ISO 2339
16
c height of the ball end ≤ 2.5
r radius 16 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 1, ISO 2339. The DIN and ISO versions are dimensionally identical per the Würth DIN→ISO changeover table; not independently verified against the ISO preview.