TIMco Square Twist Nails Sherardised - 40 X 3.75

Sherardising is a process of diffusing zinc into the surface of steel, providing a durable, sacrificial coating that offers good corrosion resistance, particularly in dry or rural environments.

These nails have a Service Class rating of 2, meaning they are suitable for occasional damp or wet conditions, typically found in rural and sheltered areas.

Yes, they are suitable for exterior use in rural and sheltered areas (Service Class 2). For coastal or highly exposed exterior environments, a higher corrosion rating may be necessary.

A twisted shank provides significantly enhanced pull-out resistance compared to a smooth shank, creating a stronger and more secure fixing, especially in wood and metal substrates.

There are approximately 312 nails per kilogram, meaning a 25.280 kg pack contains a substantial quantity suitable for large projects.

Yes, they are CE Certified and meet the BS EN 14592:2008 standard for fasteners used in timber structures.

While the twisted shank offers superior grip, their suitability for structural metal fabrication depends on the specific engineering requirements and load-bearing calculations for your project. Always consult relevant building codes and engineering specifications.

Ensure the substrate is suitable and not too dense. Check that the driving tool is appropriate for the nail size and material. Use a consistent, firm driving force.

Verify the nail is fully driven. Ensure the substrate material is adequate for the twisted shank to grip effectively. Confirm the application environment does not exceed Service Class 2 conditions.

The Sherardised finish is rated for Service Class 2. If used in environments exceeding this (e.g., coastal areas, constantly wet conditions), corrosion may occur. Consider nails with a higher corrosion rating for such applications.