ISO 7050 ST4.8 x 50 Countersunk Tapping Screw
In stock in 7 material, grade and finish combinations.
Dimensions at ST4.8 x 50
mm · ISO 7050 · 2011 edition| Dimension | Nominal | Min | Max | DIN 7982 | GB/T 846 | |
|---|---|---|---|---|---|---|
| d | Thread size | ST4.8 | – | – | ST4.8 | ST4.8 |
| P | Thread pitch | 1.6 | – | – | 1.6 | 1.6 |
| l | Length | 50 | – | – | 50 | 50 |
| a | Thread runout | – | – | 3.2 | 1.6 | 3.2 |
| dk | Theoretical head diameter | 9.3 | 8.9 | 10.4 | — | 8.9–10.4 |
| k | Head height | 2.8 | – | – | 3 | 2.8 |
| r | Radius | – | – | 2 | 1.9 | 2 |
| Recess number | 2 | – | – | 2 | 2 | |
| m | Type H recess width (ref) | 5.2 | – | – | 5.1 | 5.2 |
| Type H penetration | – | 2.7 | 3.2 | 2.59–3.1 | 2.7–3.2 | |
| m | Type Z / socket width (ref) | 4.9 | – | – | 5 | 4.9 |
| Type Z penetration | – | 2.6 | 3.05 | 2.64–3.1 | 2.6–3.05 | |
| y | Point length (ref.) (C) | 4.3 | – | – | 4.3 | 4.3 |
| y | Point length (ref.) (F) | 3.2 | – | – | 3.2 | 3.2 |
| y | Point length (ref.) (R) | 3.6 | – | – | — | 3.6 |
- DIN 7982, GB/T 846
- Values in bold differ from ISO 7050.
- Length incl. head
- 50 mm · 48.7–51.3 mm (Type C / R), 48.5–50 mm (Type F) to ISO 7050 product grade A
- Approx. weight
- ≈ 5.00 kg per 1 000 pieces · Bare steel, before coating and packing.200 pieces per kg
- Also named
- GB/T 846
Other lengths in ST4.8
All 49 sizes of Phillips Countersunk Self-Tapping ScrewNearby sizesST5.5 x 13