M4 Wing Nut DIN 315 A4 Stainless Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 99 | £0.14 | £0.17 |
| 100 - 999 | £0.12 | £0.15 |
| 1000 - 3999 | £0.12 | £0.14 |
| 4000 + | £0.10 | £0.12 |
Product Specification
| Thread Size | M4 |
| Thread Pitch | 0.70mm |
| Width | 20.0mm |
| Height | 10.5mm |
| Material | A4 Stainless Steel |
| Standard | DIN 315 |
Frequently Bought Together
Total Price: £0.00
M4 Wing Nut DIN 315 -A4 Stainless Steel (316 Marine Grade) -20mm Wide
The M4 AA4 Stainless Steel Wing Nut is a compact butterfly nut at 20mm wide -also known as a butterfly nut or thumb nut, manufactured to DIN 315 and designed for light-duty adjustable assemblies, small instrument covers and precision equipment where tool-free hand tightening speeds up regular adjustment or removal. 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 M4 bolt or threaded rod with a 0.7mm pitch.
Common Applications
- Small access panel and instrument cover hand-tightened retention
- Light clamp and bracket adjustment in workshop and laboratory settings
- Telescopic device and adjustable fixture finger-tightened fastening
- Photography and optical mounting adjustment requiring frequent repositioning
M4 A4 Wing Nut Dimensions
- Thread Size: M4
- Thread Pitch: 0.7mm
- Width: 20mm
- Height: 10.5mm
- 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