Wood screw Koelner/Rawlplug TS-6040 6x40 mm, countersunk head, TX drive

Koelner/Rawlplug TS-6040 wood screw, size 6x40 mm, features a countersunk (conical) head and a TX (Torx) drive designed for secure fastening of wooden elements. The screw’s geometry ensures reliable thread engagement in soft and hardwoods and allows the head to sit flush when driven into a countersunk hole. Intended for carpentry, joinery and general construction tasks, this screw is suitable for wood-to-wood connections and installations where a neat, flush finish is required.

Advantages

The countersunk conical head provides a flush finish that reduces snagging and allows for seamless surface treatments. The TX (Torx) drive improves torque transfer and reduces cam-out compared with slotted or Phillips drives, facilitating faster installation with powered drivers. The screw’s thread form is optimized for wood, offering consistent pull-out resistance and good holding power in both softwoods and many hardwoods.

Suitable for

• Carpentry and furniture assembly
• Joinery and interior wood fittings
• Wood-to-wood structural and non-structural connections
• Fixing wooden trims, panels and boards

Key specifications

• Diameter: 6 mm
• Length: 40 mm
• Head type: Countersunk (conical) head for flush seating
• Drive type: TX (Torx) drive
• Material/finish: Suitable for wood applications (refer to product label for coating/steel grade)
• Thread: Threaded shank designed for wood engagement

How to use

Where required, drill a pilot hole sized appropriately for the wood type and screw diameter to reduce splitting, particularly in hardwoods or near edges. Place the screw and drive it using a matched TX (Torx) bit, applying steady torque until the head sits flush with the timber surface. Avoid over-tightening which can strip the wood or damage the screw head. For repetitive installation, use a powered screwdriver or drill with torque control to maintain consistent seating depth.

Usage recommendations

Use pilot holes in hardwoods and close-to-edge applications to prevent splitting; select a corrosion-resistant coating or stainless alternative for exterior or moisture-exposed environments. Match the TX bit size to the drive to minimize wear and cam-out during installation.