DINReplaced → ISO 7050Draft · single source
DIN 7982 F
Cross recessed countersunk flat head tapping screws — Form F — with pilot point
- Head · drive
- Countersunk (flat) head · Cross recess type H (Phillips)
- Thread
- Tapping screw thread (ISO 1478)
- Tolerance
- thread ISO 1478
- Property classes
- A2
- Materials
- SteelStainless
Replaced by
ISO 7050Current · Draft
Dimensions
mm · values as the standard states them| Size | P | dk | m | m | k | a | r | t | t | recess_no | y | y |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ST2.2 | 4.3 4 – 4.3 | ≈ 2.5 | ≈ 2.4 | ≈ 1.3 | ≤ 0.8 | ≤ 0.8 | 1.02 – 1.32 | 1.1 – 1.35 | 1 | ≤ 2 | ≤ 1.6 | |
| ST2.9 | 5.5 5.2 – 5.5 | ≈ 3 | ≈ 2.9 | ≈ 1.7 | ≤ 1.1 | ≤ 1.1 | 1.4 – 1.7 | 1.48 – 1.73 | 1 | ≤ 2.6 | ≤ 2.1 | |
| ST3.5 | 6.8 6.44 – 6.8 | ≈ 4.2 | ≈ 3.9 | ≈ 2.1 | ≤ 1.3 | ≤ 1.4 | 1.62 – 2.12 | 1.6 – 2.06 | 2 | ≤ 3.2 | ≤ 2.5 | |
| (ST3.9) | 7.5 7.14 – 7.5 | ≈ 4.6 | ≈ 4.1 | ≈ 2.3 | ≤ 1.3 | ≤ 1.5 | 2.03 – 2.53 | 1.85 – 2.31 | 2 | ≤ 3.5 | ≤ 2.7 | |
| ST4.2 | 8.1 7.74 – 8.1 | ≈ 4.7 | ≈ 4.3 | ≈ 2.5 | ≤ 1.4 | ≤ 1.6 | 2.11 – 2.62 | 2.05 – 2.51 | 2 | ≤ 3.7 | ≤ 2.8 | |
| ST4.8 | 9.5 9.14 – 9.5 | ≈ 5.1 | ≈ 4.7 | ≈ 3 | ≤ 1.6 | ≤ 1.9 | 2.59 – 3.1 | 2.64 – 3.1 | 2 | ≤ 4.3 | ≤ 3.2 | |
| ST5.5 | 10.8 10.37 – 10.8 | ≈ 6.8 | ≈ 6.2 | ≈ 3.4 | ≤ 1.8 | ≤ 2.1 | 2.95 – 3.53 | 2.72 – 3.18 | 3 | ≤ 5 | ≤ 3.6 | |
| ST6.3 | 12.4 11.97 – 12.4 | ≈ 7.1 | ≈ 6.7 | ≈ 3.8 | ≤ 1.8 | ≤ 2.4 | 3.33 – 3.91 | 3.38 – 3.84 | 3 | ≤ 6 | ≤ 3.6 |
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
6.55.7 – 7.3
9.58.7 – 10.3
1312.2 – 13.8
1615.2 – 16.8
1918.2 – 19.8
2221.2 – 22.8
2524.2 – 25.8
3230.7 – 33.3
3836.7 – 39.3