A 5kg tub of purpose-designed, extremely hard-wearing Britmet nails, containing ample 2.6mm by 50mm nails that can be easily driven into each tile's downturn for a locked-down solution.Use these from flashings to tiles and ancillaries to ensure your system is fixed properly for lasting effectiveness.Allow 10 nails for every square metre of tiles. If you're installing a Britmet Plus 0.9mm system, we highly recommend using the brand's Tek screws instead of these nails.