Description
Overview
DIN7 specifies the dimensional requirements for parallel pins, ensuring reliable interchangeability and engineering performance.
This selected size is specified with diameter M5, length 20 mm, thread M5, pitch 0.8 mm.
Sold in multiples of '100 pieces. 1 Box = '100 pieces.
Material, Grade & Strength
Select the material and grade according to the intended load, environment and application.
Finish & Corrosion Protection
Plain finish is intended for protected indoor applications.
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.
Dimensions – DIN 7991 / ISO 10642 M5 x 20
| Standard | DIN 7991 / ISO 10642 |
|---|---|
| Product | Hexagon socket countersunk screw |
| Thread | M5 x 0.8 |
| Length (l) | 20 mm (overall, incl. head) |
| Head diameter (dk) | 10 mm |
| Head height (k) | 2.8 mm |
| Hex key (s) | 3 mm |
| Weight (calculated) | 3.01 kg per 1 000 pieces |
Material, Grade & Strength
| Material | High tensile alloy steel, property class 10.9 |
|---|---|
| Property class | 10.9 |
| Tensile strength Rm (min) | 1040 MPa |
| Yield / 0.2% proof Rp0.2 (min) | 940 MPa |
| Proof load stress | 830 MPa |
| Hardness | 320-380 HV |
| Elongation after fracture (min) | 9 % |
| Matching nut | property class 10 (ISO 898-2) |
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
| Measurement Type | Metric |
|---|---|
| Thread Size | M5 |
| Thread Pitch | 0.8 mm |
| Thread Style | Fully Thread |
| Drive Size | 3 mm |
| Drive Type | Hex |
| Head Style | Round |
| Diameter | M5 |
| Length | 20 mm |
| Material | Hi - Tensile Steel |
| Finish | Plain |
| Grade | Grade 10.9 |
| Standards Met | DIN 7991 |
| Package Quantity | 100 |
| Package Type | Box |