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: 3.75 Length mm: 75 Material: Carbon Steel Colour: N/A Head Dia. mm: N/A Timco Clout Nails - Galvanised (Size 75 x 3.75 - 25 Pieces) in Silver