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The Range£10.22Visit shop Unifix Mushroom Head Roofing Bolts And Nuts Bright Zinc Plated - M6 X 16 (Box Of 125) - Blue
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The Unifix Mushroom Head Roofing Bolts and Nuts are engineered for both professional contractors and DIY enthusiasts who require secure, weather-resistant fastening solutions for roofing and general construction. These bolts feature a durable, bright zinc-plated finish that provides significant corrosion resistance, ensuring longevity in outdoor environments, though users should ensure they select the correct length for their specific material thickness to avoid fitment issues.
| Colour | Silver |
|---|---|
| Model Part Number | 5014196544946 |
| Brand | Unifix |
While the bright zinc-plated finish is corrosion-resistant, marine environments are highly saline and may accelerate oxidation. Stainless steel is recommended for those specific conditions.
No, standard wrenches or spanners are sufficient for securing the nuts.
Yes, once installed, they can be painted with a metal-appropriate primer and exterior paint to match your project's color scheme.
The product includes the bolts and matching nuts; if your specific installation requires a washer for extra surface protection, it is recommended to purchase them separately.
The M6 indicates a 6mm metric thread diameter, which is the standard size for these specific fasteners.
Check the threads for debris or paint; ensure the nut is not cross-threaded before applying force.
Use a larger fender washer underneath the head to distribute the pressure across a wider surface area.
Measure the combined thickness of all materials plus the nut depth before purchase to ensure you have the correct bolt length.
To install, drill a pilot hole slightly larger than the diameter of the bolt shank to ensure a smooth fit. Align the pieces being fastened and pass the bolt through the prepared hole, then tighten the included nut onto the threaded end. Always use a flat washer if you are fastening to softer materials to prevent the bolt head from sinking into the surface. To maintain the life of the zinc plating, avoid over-tightening with power tools, which can strip the threads or chip the protective coating. For the best longevity, ensure these bolts are kept in a dry storage environment before use to prevent pre-installation oxidation.
