Large diameter head, perfect for attaching roofing felt, slate and shingles. For medium duty rust protection Conforms to Eurocode 5 and service class 2" Shank Dia. mm: 2.65 Length mm: 40 Finish: Galvanised Material: Carbon Steel Approx. Pcs Per 1kg: 350 Timco Clout Nail - Galvanised (Size 40 x 2.65 - 2.5 Kilograms) in Silver