Product Description
DIN 979 Metric Thin Castle Nuts – Class 04 Plain Steel
Metric thin castle nuts to DIN 979, manufactured from property class 04 steel with a plain, unplated finish. Available in sizes M8 to M30, these nuts feature metric coarse threads and a slotted top for use with a split pin and a suitably cross-drilled bolt, stud or shaft.
The thin profile suits assemblies with restricted axial space. Once the nut has been positioned correctly, a split pin passes through the mating fastener and the nut slots to provide positive mechanical retention.
Specifications
| Product type | Thin hexagon slotted / castle nut |
|---|---|
| Standard | DIN 979 |
| Material | Steel |
| Property class | 04 – thin nut designation |
| Finish | Plain / self colour, unplated |
| Thread type | Metric coarse, right-hand |
| Drive | External hexagon |
| Retention method | Split pin through a suitably cross-drilled mating fastener |
Available Sizes and Thread Pitches
| Thread size | Thread pitch |
|---|---|
| M8 | 1.25mm |
| M10 | 1.50mm |
| M12 | 1.75mm |
| M14 | 2.00mm |
| M16 | 2.00mm |
| M20 | 2.50mm |
| M22 | 2.50mm |
| M24 | 3.00mm |
| M30 | 3.50mm |
Key Features
- DIN 979 thin castle nut design.
- Property class 04 steel construction.
- Plain, unplated finish.
- Slotted top for split-pin retention.
- Metric coarse threads across nine available sizes.
- External hexagon for tightening with a suitable spanner or socket.
Standards
- DIN 979 – hexagon thin slotted and castle nuts.
- DIN 94 / ISO 1234 – reference standards for compatible split pins.
| A | B | C | D |
| M10 | 17mm | 9mm | 1.5 |
| M12 | 19mm | 10mm | 1.75 |
| M16 | 24mm | 13mm | 2 |
| M22 | 32mm | 18mm | 2.5 |
| M30 | 46mm | 24mm | 3.5 |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.
