Dimensions mm · values as the standard states them Size P d1 h d2 3.2 3.2 – 3.38
0.5
7.64 – 8
4.3 4.3 – 4.48
0.8
9.64 – 10
5.3 5.3 – 5.48
1
11.57 – 12
6.4 6.4 – 6.62
1.5
13.57 – 14
8.4 8.4 – 8.62
2
17.57 – 18
10.5 10.5 – 10.77
2.5
21.48 – 22
13 13 – 13.27
3
27.48 – 28
15 15 – 15.27
3
27.48 – 28
17 17 – 17.27
3
33.38 – 34
19 19 – 19.33
4
39.38 – 40
21 21 – 21.33
4
39.38 – 40
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 134
3.2
d1 inside diameter 3.2 – 3.38
h thickness 0.5
d2 outside diameter 7.64 – 8 Thread · ISO 261/262
Pitch P 0.5
d2 2.675
d3 2.387
Tap drill 2.5
Stress area As 5.03 mm² Size sheet · DIN 134
4.3
d1 inside diameter 4.3 – 4.48
h thickness 0.8
d2 outside diameter 9.64 – 10 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 134
5.3
d1 inside diameter 5.3 – 5.48
h thickness 1
d2 outside diameter 11.57 – 12 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 134
6.4
d1 inside diameter 6.4 – 6.62
h thickness 1.5
d2 outside diameter 13.57 – 14 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 134
8.4
d1 inside diameter 8.4 – 8.62
h thickness 2
d2 outside diameter 17.57 – 18 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 134
10.5
d1 inside diameter 10.5 – 10.77
h thickness 2.5
d2 outside diameter 21.48 – 22 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 134
13
d1 inside diameter 13 – 13.27
h thickness 3
d2 outside diameter 27.48 – 28 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 134
15
d1 inside diameter 15 – 15.27
h thickness 3
d2 outside diameter 27.48 – 28 Thread · ISO 261/262
Pitch P 2
d2 12.701
d3 11.546
Tap drill 12
Stress area As 115.44 mm² Size sheet · DIN 134
17
d1 inside diameter 17 – 17.27
h thickness 3
d2 outside diameter 33.38 – 34 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 134
19
d1 inside diameter 19 – 19.33
h thickness 4
d2 outside diameter 39.38 – 40 Thread · ISO 261/262
Pitch P 2.5
d2 16.376
d3 14.933
Tap drill 15.5
Stress area As 192.47 mm² Size sheet · DIN 134
21
d1 inside diameter 21 – 21.33
h thickness 4
d2 outside diameter 39.38 – 40 Thread · ISO 261/262
Pitch P 2.5
d2 18.376
d3 16.933
Tap drill 17.5
Stress area As 244.79 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.