Timco Galvanised Extra Large Head Clout Nails - 3 x 40mm (75 Pack Bag) (GEC40P) These clout nails are great at fixing roofing since the large flat head distributes the nails holding power evenly across roofing felt, shingles and slate. The galvanised steel finish gives these clout nails medium duty rust protection making them suitable for sheltered outdoor use. The extra large diameter head of these clout nails means that the holding power of the nails is spread further across the substrate resulting in a stronger overall fixing. Approximate Number of Nails: 75 Size: 3 x 30mm 3 x 40mm Quantity: Small Pack 500g 1kg 2.5kg 25kg Type: Copper Aluminium Galvanised< ELH Galvanised