Diall M4 Brass Screw Cup Washer - Bronze, Pack Of 25

This pack of 25 screw cup washers are constructed from durable brass. They have an M4 diameter. Id...

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B&QB&Q - M4 Brass Screw Cup Washer(Dia)4mmPack Of 25
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Product Information

Full details

This guide is for DIY enthusiasts and general users needing reliable fastening solutions. The key benefit is the durability and corrosion resistance offered by brass construction, ideal for various projects. A potential caveat is their specific M4 diameter, requiring matching screws. This pack contains 25 bronze-colored screw cup washers, constructed from durable brass, designed for M4 diameter screws and suitable for a range of DIY applications.

All features

ColourBronze
BrandDiall

Extended Product Information

FAQs

What size screw do these washers fit?

These washers are designed for M4 diameter screws.

Are these washers rust-proof?

Brass is highly corrosion-resistant, making them very resistant to rust, especially compared to steel. However, prolonged exposure to harsh environments may eventually cause some surface discoloration.

How many washers are in a pack?

Each pack contains 25 brass screw cup washers.

Can I use these for outdoor projects?

Yes, the brass construction offers good resistance to corrosion, making them suitable for many outdoor DIY applications.

What is the purpose of the cup design?

The cup design helps to center the screw and distribute the pressure evenly across the surface of the material being fastened, which can prevent damage and create a more stable connection.

Can I paint these washers?

While brass can be painted, it typically requires a specialized primer for good adhesion. However, their bronze color is often desirable as is.

Troubleshooting

Washer does not fit screw

Confirm that the screw is an M4 diameter. These washers are specifically designed for M4 screws.

Washer appears to be tarnished

This is a natural characteristic of brass. For aesthetic purposes, you can use a brass polish. For functional use, the tarnish does not typically affect performance.

Screw feels loose after tightening

Ensure the washer is properly seated and the screw is adequately tightened into the material. Check that the material itself can hold the screw securely.

Pros and Cons

Pros

  • Durable brass material resists rust and corrosion.
  • Provides even pressure distribution, protecting surfaces.
  • Ideal for M4 screws in various DIY applications.
  • Comes in a practical pack of 25.
  • Bronze color offers a pleasing aesthetic.

Cons

  • Limited to M4 screw diameters.
  • Brass can be softer than steel, may deform under extreme force.
  • Not suitable for heavy-duty structural applications requiring high tensile strength.
  • Color may not match all project aesthetics.

Setup, Compatibility & Care

Setup: These washers are straightforward to use. Simply place the washer onto an M4 screw before inserting it into the material. The cup side should typically face the surface being fastened to provide even pressure.

Compatibility: These washers are specifically designed for use with M4 diameter screws. Ensure your screws are M4 size for a proper fit. They are compatible with a wide range of materials, including wood, plastic, and certain metals, for DIY projects.

Care: Brass is naturally corrosion-resistant. For basic cleaning, wipe with a dry or slightly damp cloth. Avoid abrasive cleaners, which can scratch the surface. If tarnishing occurs over time (which is natural for brass), you can use a brass polish to restore the shine, though this is often unnecessary for functional applications.

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