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B&Q£3.50Visit shop B&Q - PegdevPdlM12 50 X 50 X 3mm Heavy Duty Bzp Square Plated WashersZinc PlatedPack Of 1
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The Pegdev Heavy Duty BZP Square Plated Washers are essential hardware components designed for professional contractors and serious DIY enthusiasts working on structural timber projects. These 50mm x 50mm x 3mm washers provide superior load distribution for carriage bolts, effectively preventing bolt heads or nuts from sinking into soft timber during tightening. While they offer excellent corrosion resistance, they are specifically engineered for heavy-duty timber fastening and may be overkill for lightweight hobbyist crafts or interior furniture assembly.
| Colour | Silver |
|---|---|
| Model Part Number | Pdl-M12-50X50X3 |
| Brand | Pegdev |
Yes, their zinc-plated finish is suitable for indoor use and provides a clean, silver appearance.
While they will fit over the bolt, the 12mm hole is designed for M12 hardware; using a significantly smaller bolt may lead to off-center loading.
No, these are bright zinc-plated (BZP) steel, which offers a cost-effective solution for corrosion resistance compared to solid stainless steel.
The square shape provides a larger surface area than circular washers of the same width, offering superior load distribution on timber.
While BZP offers good general protection, coastal environments with high salt content may eventually cause corrosion; consider stainless steel alternatives for extreme conditions.
Check for debris or splintered wood under the washer and clear the area; if the timber surface is significantly uneven, lightly sand or chisel the area flat.
Ensure you are using the correct length bolt for the total depth of the timber and verify that the nut has reached the end of the threads.
For optimal results, ensure the timber surface is relatively flat before tightening your hardware. These washers are fully compatible with M12 carriage bolts, hex bolts, and lag screws. While the bright zinc plating is resistant to rust, it is recommended to apply a touch of exterior-grade sealant if the structure is located in a high-salt or coastal environment. Regularly check your bolts for tension, as timber can shrink or expand with seasonal humidity changes; tightening the nuts occasionally will ensure the connection remains secure.
