ISO 14587 ST4.8 x 13 6-Lobe Raised CSK Screw
In stock in 5 material, grade and finish combinations.
Dimensions at ST4.8 x 13
mm · ISO 14587 · 2011 edition| Dimension | Nominal | Min | Max | GB/T 2670.3 | |
|---|---|---|---|---|---|
| d | Thread size | ST4.8 | – | – | ST4.8 |
| P | Thread pitch | 1.6 | – | – | 1.6 |
| l | Length | 13 | – | – | 13 |
| a | Thread runout | – | – | 1.6 | 1.6 |
| dk | Theoretical head diameter | 9.3 | 8.9 | 10.4 | 8.9–10.4 |
| k | Head height | 2.8 | – | – | 2.8 |
| r | Radius | – | – | 2 | 2 |
| Socket number | 25 | – | – | 25 | |
| A | Hexalobular socket A (ref) | 4.5 | – | – | 4.5 |
| t | Socket depth | – | 1.65 | 2.03 | 1.65–2.03 |
| y | Point length (ref.) (C) | 4.3 | – | – | 4.3 |
| y | Point length (ref.) (F) | 3.2 | – | – | 3.2 |
| y | Point length (ref.) (R) | 3.6 | – | – | 3.6 |
| f | Raised head height (ref) | 1.2 | – | – | 1.2 |
| rf | Head radius (ref) | 9.5 | – | – | 9.5 |
- GB/T 2670.3
- Values in bold differ from ISO 14587.
- Length to top of countersink
- 13 mm · 12.2–13.8 mm (Type C / R), 12.2–13 mm (Type F) to ISO 14587 product grade A
- Approx. weight
- ≈ 2.10 kg per 1 000 pieces · Bare steel, before coating and packing.475 pieces per kg
- Also named
- GB/T 2670.3
Other lengths in ST4.8
All 10 sizes of Hexalobular Socket Raised Countersunk Head Tapping ScrewNearby sizesST4.2 x 32
StandardsISO 14587GB/T 2670.3All sizes