Wood construction screw Koelner/Rawlplug TS-5030 5x30 mm, countersunk head, TX drive

Koelner/Rawlplug TS-5030 is a 5x30 mm wood construction screw with a countersunk (conical) head and a TX (Torx) drive designed for fastening wooden components with a flush finish. The screw geometry and thread profile provide good pull-out resistance and controlled penetration into common soft and hardwoods used in carpentry and furniture assembly. The countersunk head sits flush with or below the wood surface when installed, giving a neat appearance and allowing for surface treatments or cover caps.

Advantages

The TX drive ensures positive engagement with driver bits, reducing cam-out and allowing higher torque transfer compared with standard crosshead screws. The conical countersunk head provides a reliable flush finish and helps distribute compressive forces across the surrounding wood. The 5x30 mm size balances length and diameter for typical frame, trim and joinery tasks, providing sufficient hold without excessive splitting risk when used with correct pilot drilling practices.

Suitable for

• Carpentry and structural wood framing where a flush head is required
• Furniture assembly and repair of wooden furniture components
• Interior trim, skirting and panel fastening
• General woodworking projects involving softwoods and many hardwoods

Key specifications

• Thread type and profile suitable for wood fastening
• Head style: conical countersunk for flush installation
• Drive type: TX (Torx) for secure bit engagement
• Nominal dimensions: 5 mm diameter by 30 mm length
• Intended material: designed for use in wooden substrates

How to use

Choose the correct TX driver bit that matches the screw drive size and set the driver to an appropriate torque to avoid overdriving. For hardwoods or near-edge installations, pre-drill a pilot hole sized to the screw diameter to reduce splitting. Countersink the hole if a perfectly flush finish is required. Drive the screw until the head is flush with the wood surface or slightly below, taking care not to crush the surrounding fibers by applying excessive torque.

Usage recommendations

Use compatible TX bits and a controlled torque setting when fastening to hardwoods or thin sections. When appearance or surface treatments matter, finish countersinking and, if needed, conceal heads with suitable plugs or fillers. Store screws in a dry environment to avoid corrosion if they are not supplied with a protective coating.