Countersunk head plum blossom groove knurled fiberboard nails are specialized nails designed for use with fiberboard or similar materials. These nails have a flat head with a conical shape. The head is designed to sit flush or slightly below the surface of the material when driven in, allowing for a smooth and even finish. The plum blossom groove refers to the pattern or shape carved or molded into the head of the nail. It can resemble the petals of a plum blossom, hence the name. This groove helps to provide extra grip and prevents the nail from easily slipping or pulling out of the material once driven in. Fiberboard is a type of engineered wood product made from wood fibers bonded together with adhesives. It is commonly used in construction, furniture, and other applications where a dense and stable board is required. Countersunk head plum blossom groove knurled fiberboard nails are nails specifically designed for securing fiberboard or similar materials. The countersunk head allows for a flush finish, the plum blossom groove provides extra grip, and the knurled texture enhances holding power. These nails are suitable for various woodworking projects involving fiberboard.