ISO 15480 ST3.5 x 25 Washer Head Drilling Screw
In stock in 7 material, grade and finish combinations.
Dimensions at ST3.5 x 25
mm · ISO 15480 · 2019 edition| Dimension | Nominal | Min | Max | DIN 7504 K | |
|---|---|---|---|---|---|
| d | Thread size | ST3.5 | – | – | ST3.5 |
| P | Thread pitch | 1.3 | – | – | 1.3 |
| l | Length | 25 | – | – | 25 |
| a | Thread runout | – | – | 1.3 | 1.3 |
| c | Washer height | – | 0.6 | – | 0.6 |
| da | Underhead diameter | – | – | 4.1 | — |
| dc | Flange diameter | 8.3 | – | – | 8.3 |
| dc | Bearing diameter | – | 7.6 | – | 7.6 |
| e | Width across corners | – | 5.96 | – | 5.96 |
| k | Head height | 3.4 | 3 | – | 3 |
| kw | Wrenching height | – | 1.5 | – | 1.5 |
| r1 | Radius r1 | – | 0.1 | – | — |
| r2 | Radius r2 | – | – | 0.25 | 0.25 |
| s | Width across flats | – | 5.32 | 5.5 | 5.32–5.5 |
| Drilling capacity | – | 0.7 | 2.25 | 0.7–2.25 |
- DIN 7504 K
- Values in bold differ from ISO 15480.
- Length under head
- 25 mm · 24–26 mm to ISO 15480
- Approx. weight
- ≈ 1.77 kg per 1 000 pieces · Bare steel, before coating and packing.565 pieces per kg
- Also named
- GB/T 15856.5
Other lengths in ST3.5
All 40 sizes of Hex Washer Head Self-Drilling Screw with EPDM WasherStandardsISO 15480DIN 7504 KAll sizes