Twin‑Threaded Woodscrews – PZ – Double Countersunk – Zinc-Plated

Fast‑Install Pozi‑Drive Screws with Twin Threads & Double‑Countersunk Head. Timco Twin‑Threaded Woodscrews feature a classic double‑countersunk head paired with 60° twin-thread design and a single-lead 25° sharp point for fast insertion and superior grip in softwood or masonry with plugs. Surface-hardened to resist torque shearing, their partially threaded shafts reduce head shear risk. Made from C10–18 carbon steel with a bright zinc finish, they offer solid reliability for light exterior and interior wood-fixing applications.. Key Features & Benefits. Twin-thread design: Promotes fast insertion and enhanced pull-out resistance.. Double-countersunk head: Flush seating reduces head shear and ensures clean finish.. 25° sharp point: Ensures quick bite and accurate alignment.. Surface hardened steel: Up to 750 HV for torque durability; core hardened for flexibility.. Zinc plating: Provides corrosion rating ~1 for clean, dry and low-humidity environments.. Partially threaded: Thread-free shank on lengths from 1¼″ reduces substrate damage when fixing into masonry or timber.. Product Details. Sizes available: Typically 3.0×25 mm to 5.0×50 mm across Gauge 4–10 range.. Pack Size: Usually 200-piece boxes; 100 piece.. Drive type: PZ2 standard recess.. Material: C10–18 carbon steel with bright zinc plating (~3–5 µm).. Standards: Manufactured to BS 1210 with CE marking and compliant pull-out resistance.. Typical Applications. Fixing into softwood, structural timber, or hardwood.. Use with plastic plugs in masonry walls.. General joinery, decking, fence assembly, and fixture builds.. Interior & light-exterior tasks with low exposure to moisture.