Description
Overview
DIN6798 specifies the dimensions for star lock washers, ensuring compatibility and reliable engineering performance.
This selected size is specified with diameter M4, thread M4.
Sold in multiples of '500 pieces. 1 Box = '500 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 6798 A M4
| Standard | DIN 6798 A |
|---|---|
| Product | Serrated lock washer, external teeth |
| Nominal size | M4 |
| Inside diameter (d1) | 4.3 mm |
| Outside diameter (d2) | 8 mm |
| Thickness (h) | 0.5 mm |
| Weight (calculated) | 0.14 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% |
| 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 6798 A data sheet – all sizes
| Size | Nominal size | Inside diameter (d1) | Outside diameter (d2) | Thickness (h) |
|---|---|---|---|---|
| M3 | M3 | 3.2 mm | 6 mm | 0.4 mm |
| M4 | M4 | 4.3 mm | 8 mm | 0.5 mm |
| M5 | M5 | 5.3 mm | 10 mm | 0.6 mm |
| M6 | M6 | 6.4 mm | 11 mm | 0.7 mm |
| M8 | M8 | 8.4 mm | 15 mm | 0.8 mm |
| M10 | M10 | 10.5 mm | 18 mm | 0.9 mm |
| M12 | M12 | 13 mm | 20.5 mm | 1 mm |
Nominal dimensions per DIN 6798 A. 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 | M4 |
| Inner Diameter | 4.48 |
| Outer Diameter | 8 |
| Diameter | M4 |
| Thickness | 0.5 |
| Material | Stainless Steel |
| Finish | Plain |
| Grade | Grade (A2) |
| Standards Met | DIN 6798 |
| Package Quantity | 500 |
| Package Type | Box |