Flat Head Screw
A flat-head screw is the most common type of fastener in woodworking and general construction projects. Its design allows the fastener to be driven in or removed without damaging the surface of the material. The flat head also provides a convenient grip point to turn the screwdriver.
Flat head screws are available in both countersunk and non-countersunk varieties. The countersunk head sits below the product surface, giving a clean and finished appearance to the finished work. The non-countersunk variety requires a hole to be pre-drilled in the work surface to hold the head of the fastener.
Before using a flat head screw, it is important to verify that the screwdriver tip is the correct size for the fastener’s slot. A screwdriver that is too big can damage the fastener and create a poor connection.
After confirming that the screwdriver is the proper size, the user can place the tip of the screwdriver in the slot on the back of the fastener and begin turning it clockwise or counterclockwise to tighten or loosen the fastener. While turning, it is important that the user maintain a firm grip on the screwdriver to prevent it from slipping out of position.
While flat-head screws have been somewhat replaced by other screw types like Phillips heads, square drives and pozi drives, they continue to be used extensively in many applications. They are also the most economical choice for fastening tasks that do not require a specific cosmetic finish. Flat Head Screw