ISO 7379 M8 x 20 Socket Head Shoulder Screw
In stock in 3 material, grade and finish combinations.
Dimensions at M8 x 20
mm · ISO 7379 · 1983 edition| Dimension | Nominal | Min | Max | |
|---|---|---|---|---|
| d | Thread size | M8 | – | – |
| P | Thread pitch | 1.25 | – | – |
| l | Length | 20 | – | – |
| ds | Shoulder diameter | 10 | 9.951 | 9.987 |
| b | Effective thread length | – | 12.75 | 13.25 |
| dk | Head diameter | – | 15.73 | 16 |
| k | Head height | – | 6.78 | 7 |
| s | Hex socket size | 5 | – | – |
| t | Socket depth | – | 4.2 | – |
- Shoulder length
- 20 mm · 20–20.25 mm to ISO 7379 product grade A
- Approx. weight
- ≈ 26.89 kg per 1 000 pieces · Bare steel, before coating and packing.37.2 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
