DIN 6921 M12 x 40 Hex Flange Bolt
In stock in 21 material, grade and finish combinations.
Dimensions at M12 x 40
mm · DIN 6921 · 1983-06 · withdrawn| Dimension | Nominal | Min | Max | ISO 4162 | |
|---|---|---|---|---|---|
| d | Thread size | M12 | – | – | M12 |
| P | Thread pitch | 1.75 | – | – | 1.75 |
| l | Length | 40 | – | – | 40 |
| s | Width across flats | – | – | 16 | 15 |
| e | Width across corners | – | 17.62 | – | 16.32 |
| dc | Flange diameter | 26.6 | – | – | 24.7 |
| k | Head height | 11.5 | – | – | 11.9 |
- ISO 4162
- Values in bold differ from DIN 6921.
- Length under head
- 40 mm · 39.5–40.5 mm to DIN 6921 product grade A
- Approx. weight
- ≈ 50.35 kg per 1 000 pieces · Bare steel, before coating and packing.19.9 pieces per kg
Holes for this thread
ISO 273 · ISO 2306Clearance hole · fine13 mm
Clearance hole · medium13.5 mm
Clearance hole · coarse14.5 mm
Tap drill10.2 mm
