DIN 931 M20×120 Partial Thread Hex Bolt11 combinations of material, property class and finish supplied in this size.
- Standard
- DIN 931 · 1987
- Thread
- M20 · pitch 2.5 mm
- Length under head
- 120 mm
- Drive
- 30 mm spanner · e 33.53 mm
- Head height
- 12.5 mm
- Clearance / tap drill
- 21 / 22 / 24 mm · 17.5 mm
- Weight
- 345.58 kg per 1 000 pieces · Theoretical, from nominal geometry — confirm before ordering2.9 pieces per kg
Supplied to DIN 931 M20×120 — the figures shown here match ISO 4014 and GB/T 5782. All 3 record the same figures in this size. Compared on the columns shown here only — product grade, tolerance class, length range, material and property-class references are set by each standard separately. We produce to whichever one your drawing calls out. Compare all sizes →
Order M20×120
Set a quantity on as many rows as you need. Not listed? We make to your drawing — send it with the enquiry.
Every standard listed here records the same figures at M20×120. Your choice is carried into the inquiry and the quotation.
| Material | Class | Finish | Quantity | Net weight |
|---|---|---|---|---|
| Carbon Steel | 8.8 | Zinc Plated | — | |
| Carbon Steel | 8.8 | Hot Dip Galvanized | — | |
| Carbon Steel | 8.8 | Dacromet | — | |
| Carbon Steel | 8.8 | Plain | — | |
| Alloy Steel | 10.9 | Zinc Plated | — | |
| Alloy Steel | 10.9 | Dacromet | — | |
| 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 M20×120
| Dimension | Value |
|---|---|
| P | 2.5 mm |
| s | 30 mm |
| e | 33.53 mm |
| k | 12.5 mm |
| Weight | 345.58 kg / 1000 pcs |
| Pieces per kg | 2.9 |
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 |
