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B&Q£3.50Visit shop B&Q - PegdevPdlM12 40 X 40 X 3mm Heavy Duty Bzp Square Plated WashersZinc PlatedPack Of 1
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This guide is for builders, carpenters, and DIY enthusiasts undertaking heavy-duty fastening projects. The key benefit is enhanced structural integrity and corrosion resistance for timber applications like joist work and decking. A caveat is that these are specifically designed for M12 bolts and may not fit other sizes. Pegdev Heavy Duty BZP Square Plated Washers are robust fasteners designed to distribute load and prevent damage to timber when used with bolts. Key features include durable zinc plating for corrosion resistance, a square design for greater surface area contact, and suitability for M12 bolts in demanding structural applications.
| Colour | Silver |
|---|---|
| Model Part Number | Pdl - M12 40 X 40 X 3mm |
| Brand | Pegdev |
These washers are ideal for M12 carriage bolts, commonly used in structural timber applications where a smooth, unthreaded shank passes through the material.
Yes, the Bright Zinc Plating (BZP) provides good resistance to corrosion, making them suitable for outdoor applications like decking and outdoor structures. However, for extremely harsh or marine environments, higher corrosion resistance may be needed.
Square washers, like these, offer a larger surface area that distributes the load more effectively across the material, reducing the risk of the bolt head or nut pulling through, especially in softer materials like timber.
These washers are specifically designed with an M12 center hole. While an M10 bolt might pass through loosely, it is not recommended as it will not provide proper support or fit. They are intended exclusively for M12 bolts.
Each washer has a thickness of 3mm.
BZP stands for Bright Zinc Plating, a common finish applied to steel fasteners to provide a layer of sacrificial protection against corrosion.
Store them in a dry, cool place away from moisture and corrosive substances. Keeping them in their original packaging or a sealed container will help maintain the integrity of the zinc plating.
Verify that both the bolt and the washer are indeed M12 size. Slight variations in manufacturing can occur, but a significant size mismatch indicates an incorrect product or a manufacturing defect. Ensure no debris is obstructing the bolt hole.
While BZP offers protection, prolonged exposure to moisture and certain chemicals can cause surface rust. Clean the affected area with a mild detergent and water. For severe corrosion, consider replacing the washer with one with a higher level of protection, such as hot-dip galvanized or stainless steel, depending on the application.
Confirm the dimensions (40mm x 40mm) are suitable for the specific fastening point and material. The larger size is intended for load distribution; if space is limited, consider if a smaller, round washer is appropriate, though it may offer less support.
Setup: These washers are designed to be used in conjunction with M12 bolts and corresponding nuts. Place the washer between the bolt head or nut and the surface of the material being fastened. Ensure the washer lies flat against the surface to provide even support.
Compatibility: Primarily designed for use with M12 bolts and carriage bolts in structural timber applications. They are compatible with wood, and potentially other soft materials where load distribution is critical. Ensure the bolt shank is long enough to accommodate the washer thickness and any material compression.
Care: While the bright zinc plating offers good corrosion resistance, periodic inspection is recommended, especially in harsh environments. Clean any dirt or debris with a damp cloth. Avoid using abrasive cleaners or harsh chemicals, as these can damage the protective plating.
