Description
Overview
DIN1587 specifies the dimensions for dome nuts, ensuring compatibility and reliable engineering performance.
This selected size is specified with thread M20.
Sold in multiples of '1 pieces. 1 Box = '1 pieces.
Material, Grade & Strength
Select the material and strength to suit the application, environment and mating components.
Finish & Corrosion Protection
Choose the finish according to the corrosion exposure and service environment.
Typical Uses
Suitable for machinery, maintenance, construction, mining, agriculture and general engineering.
Technical Tips
- Use compatible mating components.
- Inspect parts before installation.
- Follow recognised engineering practices.
Dimensions – DIN 1587 M20
| Standard | DIN 1587 |
|---|---|
| Product | Hexagon domed cap nut |
| Thread | M20 x 2.5 |
| Across flats (s) | 30 mm |
| Overall height (h) | 34 mm |
| Weight (calculated) | 107.83 kg per 1 000 pieces |
Material, Grade & Strength
| Material | Stainless steel A2 (304) |
|---|---|
| Steel grade | AISI 304 (1.4301) |
| Composition | C max 0.07%, Cr 17.5-19.5%, Ni 8.0-10.5% |
| Property class | A2-70 (ISO 3506) unless marked -80 |
| Tensile strength Rm (min) | 700 MPa (class 70), 800 MPa (class 80) |
| Yield Rp0.2 (min) | 450 MPa (class 70), 600 MPa (class 80) |
| Typical use | general corrosion resistance, indoor/outdoor, food equipment |
Finish & Corrosion Protection
Plain / self colour: No applied coating. Stainless, brass and nylon parts are supplied plain; plain steel parts need oil, paint or protected environments.
DIN 1587 data sheet – all sizes
| Size | Thread | Across flats (s) | Overall height (h) |
|---|---|---|---|
| M4 | M4 x 0.7 | 7 mm | 8 mm |
| M5 | M5 x 0.8 | 8 mm | 10 mm |
| M6 | M6 x 1 | 10 mm | 12 mm |
| M8 | M8 x 1.25 | 13 mm | 15 mm |
| M10 | M10 x 1.5 | 17 mm | 18 mm |
| M12 | M12 x 1.75 | 19 mm | 22 mm |
| M14 | M14 x 2 | 22 mm | 25 mm |
| M16 | M16 x 2 | 24 mm | 28 mm |
| M18 | M18 x 2.5 | 27 mm | 32 mm |
| M20 | M20 x 2.5 | 30 mm | 34 mm |
| M24 | M24 x 3 | 36 mm | 42 mm |
Nominal dimensions per DIN 1587. Weights are calculated from nominal dimensions and are a guide only (±10%). Values for fit and strength should be confirmed against the standard for critical applications.
Specifications
| Measurement Type | Metric |
|---|---|
| Thread Size | M20 |
| Drive Type | Hex |
| Head Style | Dome |
| Material | Stainless Steel |
| Finish | Stainless steel |
| Grade | Grade (A2) |
| Standards Met | DIN 1587 |
| Package Quantity | 1 |
| Package Type | Box |