The 4 mm Grover washers made of A4 stainless steel are a reliable solution to prevent loosening of screws and bolts in marine environments. Thanks to their special Grover (spring or elastic) type design, these washers offer excellent resistance to vibration and torsion, maintaining constant pressure in nautical fastenings.
Technical Characteristics
- Inner diameter: 4 mm
- Made of A4 stainless steel (AISI 316): maximum corrosion resistance
- Polished finish
- Packaging: blister pack
Advantages
- Prevent loosening of fastenings subject to constant vibrations
- Ideal for mounting marine equipment, structures, fittings, and rigging
- Long service life even in saltwater and outdoor exposure environments
Applications
- Deck assemblies, stanchions, railings, and fenders
- Fixing supports, hinges, and nautical accessories
Compatibility
Recommended for stainless steel screws of 4 mm diameter (M4). Check compatibility with other screws and structural elements.
Usage and Maintenance Tips
- Install next to the nut or screw head for maximum anti-loosening effectiveness
- Clean periodically with fresh water to prevent salt deposits
