ISO 14587 ST3.5 x 16 6-Lobe Raised CSK Screw
In stock in 5 material, grade and finish combinations.
Dimensions at ST3.5 x 16
mm · ISO 14587 · 2011 edition| Dimension | Nominal | Min | Max | GB/T 2670.3 | |
|---|---|---|---|---|---|
| d | Thread size | ST3.5 | – | – | ST3.5 |
| P | Thread pitch | 1.3 | – | – | 1.3 |
| l | Length | 16 | – | – | 16 |
| a | Thread runout | – | – | 1.3 | 1.3 |
| dk | Theoretical head diameter | 7.3 | 6.9 | 8.2 | 6.9–8.2 |
| k | Head height | 2.35 | – | – | 2.35 |
| r | Radius | – | – | 1.4 | 1.4 |
| Socket number | 15 | – | – | 15 | |
| A | Hexalobular socket A (ref) | 3.35 | – | – | 3.35 |
| t | Socket depth | – | 1.14 | 1.4 | 1.14–1.4 |
| y | Point length (ref.) (C) | 3.2 | – | – | 3.2 |
| y | Point length (ref.) (F) | 2.5 | – | – | 2.5 |
| y | Point length (ref.) (R) | 2.7 | – | – | 2.7 |
| f | Raised head height (ref) | 0.8 | – | – | 0.8 |
| rf | Head radius (ref) | 8.5 | – | – | 8.5 |
- GB/T 2670.3
- Values in bold differ from ISO 14587.
- Length to top of countersink
- 16 mm · 15.2–16.8 mm (Type C / R), 15.2–16 mm (Type F) to ISO 14587 product grade A
- Approx. weight
- ≈ 1.17 kg per 1 000 pieces · Bare steel, before coating and packing.857 pieces per kg
- Also named
- GB/T 2670.3
Other lengths in ST3.5
All 10 sizes of Hexalobular Socket Raised Countersunk Head Tapping Screw1619
StandardsISO 14587GB/T 2670.3All sizes