These Phillips flat head concrete screws feature a countersunk design with four ribs, ensuring a flush finish when driven into the material. The yellow zinc coating provides corrosion resistance, while the dual-thread (high-low thread) design offers excellent bite and grip, delivering a strong and durable connection.
They are mainly used for wood-to-wood fastening, and can also serve as an alternative in applications requiring pocket hole screws. In construction, similar screws are often applied for securing cement boards such as with HardieBacker screws or Hardie board screws, where strong holding power and stability are essential.
