R-TECH Steel Shakeproof Washers - BZP M3 - Pack Of 1000

'Shakeproof' refers to the washer's design to help prevent fasteners from loosening due to vibrations or 'shake'.

The BZP finish provides a layer of corrosion resistance and a bright, clean appearance. The clear passivation adds further protection against oxidation.

No, these specific washers are designed for M3 screws only. Their internal diameter of 3.2mm is matched to M3 threads. You would need M4-specific washers for M4 screws.

Yes, R-TECH Shakeproof Washers are generally reusable provided they are not damaged or excessively deformed during removal.

They are ideal for applications where vibration is a concern, such as in electronics, industrial machinery, automotive components, and domestic appliances to ensure fastenings remain secure.

This product is supplied in packs of 1000 washers.

Ensure you are using an M3 screw/bolt. Verify the washer is correctly seated against the material surface and not spinning freely with the fastener. Check if the fastener is overtightened, which can sometimes reduce the washer's locking effectiveness.

This is uncommon with the BZP finish but can occur with prolonged exposure to moisture or corrosive environments. Ensure proper storage in a dry place. For critical applications, consider alternative materials if extreme conditions are expected.

Confirm the fastener is indeed an M3 size. Check the washer's internal diameter for any manufacturing defects or debris. The 3.2mm internal diameter is standard for M3 applications.