The (New) APPROX 400 (2.5KG) Clout Nails by Perry are a versatile and essential DIY material for home and furniture projects. Made of galvanised steel, these 3.35mm x 50mm nails feature a flat head design, making them ideal for plasterboard applications. The 2.5kg bag contains various sizes to suit different needs, ensuring a secure and durable fastening solution for your construction projects. With a metric system of measurement, these clout nails provide a reliable option for fastening materials in a range of applications.