ISO 15483 ST6.3 x 25 Raised CSK Drill Screw
In stock in 7 material, grade and finish combinations.
Dimensions at ST6.3 x 25
mm · ISO 15483 · 1999 edition| Dimension | Nominal | Min | Max | DIN 7504 R | GB/T 15856.3 | |
|---|---|---|---|---|---|---|
| d | Thread size | ST6.3 | – | – | ST6.3 | ST6.3 |
| P | Thread pitch | 1.8 | – | – | 1.8 | 1.8 |
| l | Length | 25 | – | – | 25 | 25 |
| a | Thread runout | – | – | 1.8 | — | 1.8 |
| dk | Theoretical head diameter | 11.3 | 10.9 | 12.6 | — | 10.9–12.6 |
| k | Head height | 3.15 | – | – | — | 3.15 |
| r | Radius | – | – | 2.4 | — | 2.4 |
| Recess number | 3 | – | – | — | 3 | |
| m | Type H recess width (ref) | 7.3 | – | – | — | 7.3 |
| Type H penetration | – | 3.5 | 4 | — | 3.5–4 | |
| m | Type Z / socket width (ref) | 7.2 | – | – | — | 7.2 |
| Type Z penetration | – | 3.4 | 3.85 | — | 3.4–3.85 | |
| Drilling capacity | – | 2 | 6 | 2–6 | 2–6 | |
| f | Raised head height (ref) | 1.4 | – | – | — | 1.4 |
| rf | Head radius (ref) | 12 | – | – | — | 12 |
- DIN 7504 R, GB/T 15856.3
- Values in bold differ from ISO 15483.
- Length to top of countersink
- 25 mm · 24–26 mm to ISO 15483
- Approx. weight
- ≈ 5.65 kg per 1 000 pieces · Bare steel, before coating and packing.177 pieces per kg
- Also named
- GB/T 15856.3