For ceiling installation using angle brackets with powder-actuated drive pins, the nails are available in 27mm and 32mm lengths, with a surface treatment of electroplated zinc. The nails have a hardness of 52HRC and 56HRC, ensuring strong penetration and reliable holding power. The angle brackets are 1.8mm thick with 7mm holes. These powder-driven pins exhibit excellent toughness and durability, providing a secure, long-lasting fastening that resists loosening. Ideal for applications where high-strength, reliable fastening is required.