DINReplaced → ISO 15481Draft · single source
DIN 7504 N
Self-drilling screws with tapping screw thread — Form N — cross recessed pan head
Replaced by
ISO 15481
National equivalents
UNI 8118 N
- Thread
- Tapping screw thread (ISO 1478)
- Tolerance
- thread ISO 1478
- Property classes
- A2
- Materials
- SteelStainless
Replaced by
ISO 15481
Dimensions
mm · values as the standard states them| Size | P | dk | m | m | k | r | t | t | recess_no |
|---|---|---|---|---|---|---|---|---|---|
| ST2.9 | 5.5 5.2 – 5.5 | ≈ 3 | ≈ 2.8 | ≈ 1.7 | ≤ 1.1 | 1.4 – 1.7 | 1.48 – 1.73 | 1 | |
| ST3.5 | 6.8 6.44 – 6.8 | ≈ 4.2 | ≈ 4 | ≈ 2.1 | ≤ 1.4 | 1.62 – 2.12 | 1.6 – 2.06 | 2 | |
| (ST3.9) | 7.5 7.14 – 7.5 | ≈ 4.6 | ≈ 4.2 | ≈ 2.3 | ≤ 1.5 | 2.03 – 2.53 | 1.85 – 2.31 | 2 | |
| ST4.2 | 8.1 7.74 – 8.1 | ≈ 4.7 | ≈ 4.4 | ≈ 2.5 | ≤ 1.6 | 2.11 – 2.62 | 2.05 – 2.51 | 2 | |
| ST4.8 | 9.5 9.14 – 9.5 | ≈ 5.1 | ≈ 5 | ≈ 3 | ≤ 1.9 | 2.59 – 3.1 | 2.64 – 3.1 | 2 | |
| ST5.5 | 10.8 10.37 – 10.8 | ≈ 6.8 | ≈ 6.3 | ≈ 3.4 | ≤ 2.1 | 2.95 – 3.53 | 2.72 – 3.16 | 3 | |
| ST6.3 | 12.4 11.97 – 12.4 | ≈ 7.1 | ≈ 7 | ≈ 3.8 | ≤ 2.4 | 3.33 – 3.91 | 3.38 – 3.84 | 3 |
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.
Length tolerances
9.58.75 – 10.25
1312.1 – 13.9
1615.1 – 16.9
1918 – 20
2221 – 23
2524 – 26
3230.75 – 33.25
3836.75 – 39.25
4543.75 – 46.25
5048.75 – 51.25