ISO 7047 M3 x 8 Raised Countersunk Head Screw
In stock in 5 material, grade and finish combinations.
Dimensions at M3 x 8
mm · ISO 7047 · 2011 edition| Dimension | Nominal | Min | Max | |
|---|---|---|---|---|
| d | Thread size | M3 | – | – |
| P | Thread pitch | 0.5 | – | – |
| l | Length | 8 | – | – |
| a | Thread runout | – | – | 1 |
| dk | Theoretical head diameter | 5.5 | 5.2 | 6.3 |
| f | Raised head height (ref) | 0.7 | – | – |
| k | Head height | 1.65 | – | – |
| r | Radius | – | – | 0.8 |
| rf | Head radius (ref) | 6 | – | – |
| x | Incomplete thread | – | – | 1.25 |
| Recess number | 2 | – | – | |
| m | Type H recess width (ref) | 3.4 | – | – |
| Type H penetration | – | 1.8 | 2.2 | |
| m | Type Z / socket width (ref) | 3.1 | – | – |
| Type Z penetration | – | 1.83 | 2.08 | |
| b | Thread length | 25 | – | – |
- Length to top of countersink
- 8 mm · 7.71–8.29 mm to ISO 7047 product grade A
- Approx. weight
- ≈ 0.53 kg per 1 000 pieces · Bare steel, before coating and packing.1898 pieces per kg
Holes for this thread
ISO 273 · ISO 2306Clearance hole · fine3.2 mm
Clearance hole · medium3.4 mm
Clearance hole · coarse3.6 mm
Tap drill2.5 mm
