ISO 7380-1 M8 x 40 Button Head Socket Screw
In stock in 17 material, grade and finish combinations.
Dimensions at M8 x 40
mm · ISO 7380-1 · dimensions from 2011 · current edition 2022| Dimension | Nominal | Min | Max | |
|---|---|---|---|---|
| d | Thread size | M8 | – | – |
| P | Thread pitch | 1.25 | – | – |
| l | Length | 40 | – | – |
| s | Hex socket size | 5 | – | – |
| dk | Head diameter | 14 | – | – |
| k | Head height | 4.4 | – | – |
| b | Thread length | 28 | – | – |
- Length under head
- 40 mm · 39.5–40.5 mm to ISO 7380-1
- Approx. weight
- ≈ 16.80 kg per 1 000 pieces · Bare steel, before coating and packing.59.5 pieces per kg
Holes for this thread
ISO 273 · ISO 2306Clearance hole · fine8.4 mm
Clearance hole · medium9 mm
Clearance hole · coarse10 mm
Tap drill6.8 mm
