Samac PST420PP 4x20mm Performance PLUS Screw TUB (1200) PST420PP Pozi drive for reliable bit engagement and efficient installation Reinforced double countersunk head reduces head breakage and assists countersinking Self-countersinking ribs deliver improved countersinking and a flush finish Waxed zinc and yellow passivated finish provides corrosion resistance and significantly reduces torque Milling tread reduces torque and helps prevent splitting Serrated thread cuts into wood to further reduce splitting and torque Type 17 cut point reduces splitting and minimises the need for pre-drilling Size: 4 x 20mm Pack quantity: 1200 screws Includes FREE pozi bit The Samac Performance PLUS wood screw range is engineered for fast, clean and dependable fixing performance. Designed to drive smoothly with reduced torque, these screws help achieve a secure hold while minimising the risk of splitting and head damage. The reinforced countersunk head and self-countersinking ribs support a neat, professional finish, while the Type 17 cut point improves installation efficiency by reducing the need for pre-drilling. Ideal for a wide range of timber applications, this bulk pack offers excellent value for high-volume projects and trade use.