ISO 14586 ST5.5 x 38 6-Lobe CSK Tapping Screw
In stock in 5 material, grade and finish combinations.
Dimensions at ST5.5 x 38
mm · ISO 14586 · 2011 edition| Dimension | Nominal | Min | Max | GB/T 2670.2 | |
|---|---|---|---|---|---|
| d | Thread size | ST5.5 | – | – | ST5.5 |
| P | Thread pitch | 1.8 | – | – | 1.8 |
| l | Length | 38 | – | – | 38 |
| a | Thread runout | – | – | 1.8 | 1.8 |
| dk | Theoretical head diameter | 10.3 | 9.9 | 11.5 | 9.9–11.5 |
| k | Head height | 3 | – | – | 3 |
| r | Radius | – | – | 2.2 | 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) | 5 | – | – | 5 |
| y | Point length (ref.) (F) | 3.6 | – | – | 3.6 |
| y | Point length (ref.) (R) | 4.3 | – | – | 4.3 |
- GB/T 2670.2
- Values in bold differ from ISO 14586.
- Length incl. head
- 38 mm · 36.7–39.3 mm (Type C / R), 36.7–38 mm (Type F) to ISO 14586 product grade A
- Approx. weight
- ≈ 5.24 kg per 1 000 pieces · Bare steel, before coating and packing.191 pieces per kg
- Also named
- GB/T 2670.2
Other lengths in ST5.5
All 30 sizes of Hexalobular Socket Countersunk Head Tapping ScrewNearby sizesST6.3 x 19
StandardsISO 14586GB/T 2670.2All sizes