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A nut conforming to DIN 439, commonly known as a half nut, thin nut, or jam/lock nut.
Designed with a reduced height, these nuts are typically tightened using a spanner or socket, and are often used in pairs or in combination with a full hex nut to create a secure locking arrangement.
This method, often referred to as the double nut technique helps prevent loosening under vibration and load, making them ideal for a wide range of engineering and assembly applications.
Manufactured from A4 stainless steel (316 marine grade), these half nuts offer excellent corrosion resistance, making them particularly suitable for marine, outdoor, and harsh environments.
A widely used and well-established fastener, half nuts have been relied upon for decades across mechanical, construction, and general engineering industries worldwide.
- DIN 439 / ISO 4035 standard half nuts
- Thin pattern design for space-saving applications
- Ideal for use in double nut locking arrangements
- A4 stainless steel (316 marine grade) for superior corrosion resistance
- Suitable for marine, outdoor, and exposed environments
- Compatible with metric bolts and threaded rods
- Durable, strong, and reusable
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