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.