ISO 7047 M8×20 Raised Countersunk Head Screw5 combinations of material, property class and finish supplied in this size.
- Standard
- ISO 7047 · 2011
- Thread
- M8 · pitch 1.25 mm
- Length under head
- 20 mm · 19.58–20.42 mm to ISO 7047 product grade A
- Head height
- 4.65 mm
- Clearance / tap drill
- 8.4 / 9 / 10 mm · 6.8 mm
- Weight
- 10.10 kg per 1 000 pieces · From the standard's published table99.0 pieces per kg
Order M8×20
Set a quantity on as many rows as you need. Not listed? We make to your drawing — send it with the enquiry.
| Material | Class | Finish | Quantity | Net weight |
|---|---|---|---|---|
| Carbon Steel | 4.8 | Zinc Plated | — | |
| Carbon Steel | 4.8 | Nickel Plated | — | |
| Carbon Steel | 4.8 | Plain | — | |
| Stainless Steel | A2-70 | Plain | — | |
| Stainless Steel | A2-70 | Passivated | — |
Dimensions at M8×20
| Dimension | Value |
|---|---|
| P | 1.25 mm |
| k | 4.65 mm |
| Weight | 10.10 kg / 1000 pcs |
| Pieces per kg | 99.0 |
Plating adds thickness — state the finish on the order.
Holes for this thread
ISO 273 · ISO 2306| Hole | Diameter |
|---|---|
| Clearance hole | 8.4 / 9 / 10 mm |
| Tap drill | 6.8 mm |
Other lengths in M8
All sizes →| Size | kg per 1 000 pieces | |
|---|---|---|
| M8×16 | 8.81 | open |
| M8×20 | 10.10 | this page |
| M8×25 | 11.70 | open |
| M8×30 | 13.30 | open |
| M8×35 | 14.90 | open |




