Dimensions mm · values as the standard states them Size P d1 e h c d2 mass 13 13
13 – 13.27
≈ 0.5
3
2.7 – 3.3
1.6
1.6 – 1.9
24
23.48 – 24
7.03
17 17
17 – 17.27
≈ 1
4
3.7 – 4.3
1.6
1.6 – 1.9
30
29.48 – 30
14.6
21 21
21 – 21.33
≈ 1
4
3.7 – 4.3
2
2 – 2.5
37
36.38 – 37
19.6
23 23
23 – 23.33
≈ 1
4
3.7 – 4.3
2
2 – 2.5
39
38.38 – 39
24.3
25 25
25 – 25.33
≈ 1
4
3.7 – 4.3
2
2 – 2.5
44
43.38 – 44
30.6
28 28
28 – 28.52
≈ 1
5
4.4 – 5.6
2.5
2.5 – 3
50
49 – 50
50.2
31 31
31 – 31.62
≈ 1
5
4.4 – 5.6
2.5
2.5 – 3
56
54.8 – 56
63.2
37 37
37 – 37.62
≈ 1.5
6
5.4 – 6.6
3
3 – 3.5
66
64.8 – 66
115
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 6916
13
d1 inside diameter 13
e ≈ 0.5
h thickness 3
c 1.6
d2 outside diameter 24
mass mass per 1000 pieces (kg) 7.03 Thread · ISO 261/262
Pitch P 1.75
d2 10.863
d3 9.853
Tap drill 10.25
Stress area As 84.27 mm² Size sheet · DIN 6916
17
d1 inside diameter 17
e ≈ 1
h thickness 4
c 1.6
d2 outside diameter 30
mass mass per 1000 pieces (kg) 14.6 Thread · ISO 261/262
Pitch P 2
d2 14.701
d3 13.546
Tap drill 14
Stress area As 156.67 mm² Size sheet · DIN 6916
21
d1 inside diameter 21
e ≈ 1
h thickness 4
c 2
d2 outside diameter 37
mass mass per 1000 pieces (kg) 19.6 Thread · ISO 261/262
Pitch P 2.5
d2 18.376
d3 16.933
Tap drill 17.5
Stress area As 244.79 mm² Size sheet · DIN 6916
23
d1 inside diameter 23
e ≈ 1
h thickness 4
c 2
d2 outside diameter 39
mass mass per 1000 pieces (kg) 24.3 Thread · ISO 261/262
Pitch P 2.5
d2 20.376
d3 18.933
Tap drill 19.5
Stress area As 303.4 mm² Size sheet · DIN 6916
25
d1 inside diameter 25
e ≈ 1
h thickness 4
c 2
d2 outside diameter 44
mass mass per 1000 pieces (kg) 30.6 Thread · ISO 261/262
Pitch P 3
d2 22.051
d3 20.319
Tap drill 21
Stress area As 352.5 mm² Size sheet · DIN 6916
28
d1 inside diameter 28
e ≈ 1
h thickness 5
c 2.5
d2 outside diameter 50
mass mass per 1000 pieces (kg) 50.2 Thread · ISO 261/262
Pitch P 3
d2 25.051
d3 23.319
Tap drill 24
Stress area As 459.41 mm² Size sheet · DIN 6916
31
d1 inside diameter 31
e ≈ 1
h thickness 5
c 2.5
d2 outside diameter 56
mass mass per 1000 pieces (kg) 63.2 Thread · ISO 261/262
Pitch P 3.5
d2 27.727
d3 25.706
Tap drill 26.5
Stress area As 560.59 mm² Size sheet · DIN 6916
37
d1 inside diameter 37
e ≈ 1.5
h thickness 6
c 3
d2 outside diameter 66
mass mass per 1000 pieces (kg) 115 Thread · ISO 261/262
Pitch P 4
d2 33.402
d3 31.093
Tap drill 32
Stress area As 816.72 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 Otto Roth status 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 6916, ISO 7416. Kept as the DIN table (the source lists the DIN as the current norm); equivalence with the ISO standard is not verified.