M3 Wing Nut (DIN 315) | Marine Grade A4 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 99 | £0.17 | £0.20 |
| 100 - 999 | £0.14 | £0.17 |
| 1000 - 3999 | £0.12 | £0.15 |
| 4000 + | £0.10 | £0.12 |
£0.20 / each
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Product Specification
| Thread Size | M3 |
| Thread Pitch | 0.50mm |
| Width | 20.0mm |
| Height | 10.0mm |
| Material | A4 Stainless Steel |
| Standard | DIN 315 |
Frequently Bought Together
Total Price: £0.00
M3 Wing Nut DIN 315 -A4 Stainless Steel (316 Marine Grade) -20mm Wide
The M3 A4 Stainless Steel Wing Nut is the smallest size in this DIN 315 range -also known as a butterfly nut or thumb nut, manufactured to DIN 315 and designed for miniature precision assemblies, instrument housings and electronics where a small hand-tightened fastener allows frequent access without tools. The two large wings allow the nut to be tightened and loosened by hand without any tools -essential wherever the fastening needs to be adjusted, inspected or removed regularly without stopping to find a spanner.
Manufactured from A4 stainless steel (grade 316) -also known as marine grade -this wing nut contains molybdenum which significantly enhances resistance to chloride corrosion compared to standard A2. At this small size the A4 grade is typically chosen for marine instrument housings, coastal electronics enclosures and precision assemblies in food processing or chemical environments where saltwater or cleaning agents are present. DIN 315 compliant -fits any compatible metric M3 bolt or threaded rod with a 0.5mm pitch.
Common Applications
- Scientific instrument panel fastening requiring frequent tool-free access
- PCB housing and electronics enclosure hand-tightened assembly
- Miniature jig and fixture adjustment in precision engineering
- Laboratory and optical instrument assembly and disassembly
M3 A4 Wing Nut Dimensions
- Thread Size: M3
- Thread Pitch: 0.5mm
- Width: 20mm
- Height: 10mm
- Material: A4 Stainless Steel (316 Marine Grade)
- Standard: DIN 315
- Drive: Hand Tightening (Tool-Free)
- Also Known As: Butterfly Nut, Thumb Nut
View our full stainless steel wing nut range or browse our complete wing nut collection. We also sell nylon wing nuts for applications where a non-metallic fastener is required.
Need help or buying in bulk?
For technical advice on wing nut selection or volume pricing, call 01233 713581.
Fri 8.30 am - 3.30 pm
