DIN 6921 M8 x 20 Hex Flange Bolt
In stock in 21 material, grade and finish combinations.
Dimensions at M8 x 20
mm · DIN 6921 · 1983-06 · withdrawn| Dimension | Nominal | Min | Max | ISO 4162 | |
|---|---|---|---|---|---|
| d | Thread size | M8 | – | – | M8 |
| P | Thread pitch | 1.25 | – | – | 1.25 |
| l | Length | 20 | – | – | 20 |
| s | Width across flats | – | – | 13 | 10 |
| e | Width across corners | – | 14.26 | – | 10.8 |
| dc | Flange diameter | 18 | – | – | 17 |
| k | Head height | 8.1 | – | – | 8.5 |
- ISO 4162
- Values in bold differ from DIN 6921.
- Length under head
- 20 mm · 19.58–20.42 mm to DIN 6921 product grade A
- Approx. weight
- ≈ 15.48 kg per 1 000 pieces · Bare steel, before coating and packing.64.6 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
