Description: Strong Versatility: Concrete wall nails are suitable for fixing various roofing materials such as tiles, corrugated boards, color steel tiles, metal plates, etc Big Head Design: Big head steel nails and big head cement nails adopt big head design, which can increase the force area, prevent the nails from falling off, and improve fixing strengthPremium Material: Cement nails are made of quality steel, with galvanized surface, strong, wear resistant, and can be used for a long timeExtended Design: Hardware nails are specially designed for reinforcing roofing materials, with a longer length, can penetrate thicker materials, and provide a more secure fixing effectComplete Specifications: Nails of various specifications and sizes meet fixing needs of roofing materials of different thicknesses and lengths Specification: Material: Steel Package Includes: 50 Concrete Wall Nails (approximately 50) Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.