ISO 7380-1 M4 x 40 Button Head Socket Screw
In stock in 14 material, grade and finish combinations.
Dimensions at M4 x 40
mm · ISO 7380-1 · dimensions from 2011 · current edition 2022| Dimension | Nominal | Min | Max | |
|---|---|---|---|---|
| d | Thread size | M4 | – | – |
| P | Thread pitch | 0.7 | – | – |
| l | Length | 40 | – | – |
| s | Hex socket size | 2.5 | – | – |
| dk | Head diameter | 7.6 | – | – |
| k | Head height | 2.2 | – | – |
| b | Thread length | 20 | – | – |
- Length under head
- 40 mm · 39.5–40.5 mm to ISO 7380-1
- Approx. weight
- ≈ 3.70 kg per 1 000 pieces · Bare steel, before coating and packing.270 pieces per kg
Holes for this thread
ISO 273 · ISO 2306Clearance hole · fine4.3 mm
Clearance hole · medium4.5 mm
Clearance hole · coarse4.8 mm
Tap drill3.3 mm
Other lengths in M4
All 72 sizes of Button Head Socket ScrewParts that mate with M4
Nearby sizesM5 x 8