Description
Overview
DIN7 specifies the dimensional requirements for parallel pins, ensuring reliable interchangeability and engineering performance.
This selected size is specified with diameter M20, length 70 mm, thread M20, pitch 2.5 mm.
Sold in multiples of '1 pieces. 1 Box = '1 pieces.
Material, Grade & Strength
A2 (304) stainless steel provides excellent corrosion resistance.
Finish & Corrosion Protection
Match the finish to the service environment.
Typical Uses
Used in machinery, maintenance, manufacturing, agriculture, mining and general engineering applications.
Technical Tips
- Select the correct size and material for the application.
- Inspect components before installation.
- Follow recognised engineering practices and manufacturer recommendations.
Data Sheet
Dimensions – DIN 7991 / ISO 10642 M20 x 70
| Standard | DIN 7991 / ISO 10642 |
|---|---|
| Product | Hexagon socket countersunk screw |
| Thread | M20 x 2.5 |
| Length (l) | 70 mm (overall, incl. head) |
| Head diameter (dk) | 36 mm |
| Head height (k) | 8.5 mm |
| Hex key (s) | 12 mm |
| Weight (calculated) | 168.91 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 7991 data sheet – all sizes
| Size | Thread | Head diameter (dk) | Head height (k) | Hex key (s) |
|---|---|---|---|---|
| M3 | M3 x 0.5 | 6 mm | 1.7 mm | 2 mm |
| M4 | M4 x 0.7 | 8 mm | 2.3 mm | 2.5 mm |
| M5 | M5 x 0.8 | 10 mm | 2.8 mm | 3 mm |
| M6 | M6 x 1 | 12 mm | 3.3 mm | 4 mm |
| M8 | M8 x 1.25 | 16 mm | 4.4 mm | 5 mm |
| M10 | M10 x 1.5 | 20 mm | 5.5 mm | 6 mm |
| M12 | M12 x 1.75 | 24 mm | 6.5 mm | 8 mm |
| M14 | M14 x 2 | 27 mm | 7 mm | 10 mm |
| M16 | M16 x 2 | 30 mm | 7.5 mm | 10 mm |
| M20 | M20 x 2.5 | 36 mm | 8.5 mm | 12 mm |
| M24 | M24 x 3 | 39 mm | 14 mm | 14 mm |
Nominal dimensions per DIN 7991 / ISO 10642. 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
No structured specifications are available yet.