ISO 14579 M20×55 Socket Head Cap Screw10 combinations of material, property class and finish supplied in this size.
- Standard
- ISO 14579 · 2011
- Thread
- M20 · pitch 2.5 mm
- Length under head
- 55 mm · 54.4–55.6 mm to ISO 14579 product grade A
- Head height
- 20 mm
- Clearance / tap drill
- 21 / 22 / 24 mm · 17.5 mm
- Weight
- 212.71 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering4.7 pieces per kg
Order M20×55
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 | 8.8 | Blackened | — | |
| Carbon Steel | 8.8 | Zinc Plated | — | |
| Carbon Steel | 8.8 | Plain | — | |
| Alloy Steel | 10.9 | Blackened | — | |
| Alloy Steel | 10.9 | Zinc Plated | — | |
| Alloy Steel | 10.9 | Plain | — | |
| Stainless Steel | A2-70 | Plain | — | |
| Stainless Steel | A2-70 | Passivated | — | |
| Stainless Steel | A4-80 | Plain | — | |
| Stainless Steel | A4-80 | Passivated | — |
Dimensions at M20×55
| Dimension | Value |
|---|---|
| P | 2.5 mm |
| k | 20 mm |
| Weight | 212.71 kg / 1000 pcs |
| Pieces per kg | 4.7 |
Plating adds thickness — state the finish on the order.
Holes for this thread
ISO 273 · ISO 2306| Hole | Diameter |
|---|---|
| Clearance hole | 21 / 22 / 24 mm |
| Tap drill | 17.5 mm |
Other lengths in M20
All sizes →| Size | kg per 1 000 pieces | |
|---|---|---|
| M20×45 | 189.77 | open |
| M20×50 | 201.24 | open |
| M20×55 | 212.71 | this page |
| M20×60 | 224.17 | open |
| M20×65 | 235.64 | open |
M20 x 20M20 x 25M20 x 30M20 x 35M20 x 40M20 x 45M20 x 50M20 x 60M20 x 65M20 x 70M20 x 80M20 x 90M20 x 100M20 x 110M20 x 120
