R-TECH Steel Shakeproof Washers BZP - M4 - Pack Of 100

Shakeproof washers are designed to resist loosening caused by vibrations. They create a locking action that helps maintain tightness on fastened components.

This finish provides a bright, aesthetic appearance and offers a degree of protection against corrosion in typical indoor or moderate environments.

No, these specific washers are designed for M4 fasteners. Using them with different sizes may not provide a secure fit or proper vibration resistance. R-TECH offers M3 and M5 variants.

This specific product is supplied in a pack of 100 washers.

They offer moderate corrosion resistance suitable for some outdoor uses, but for prolonged exposure to weather or corrosive elements, stainless steel alternatives are generally recommended.

The internal diameter is approximately 4.3mm, and the outside diameter is approximately 8mm.

Verify that both the fastener and the washer are indeed M4 size. Check for any burrs or damage on the fastener or washer that might be obstructing the fit.

Ensure the washer is correctly seated and that the fastener is tightened sufficiently. The effectiveness of shakeproof washers is dependent on proper installation and the level of vibration.

The bright zinc-plated finish offers moderate corrosion resistance. Store in a dry place. For environments with high humidity or exposure to corrosive substances, a different washer material (e.g., stainless steel) may be required.