Screw for wood Koelner/Rawlplug TS-3040 3x40 mm conical head, TX drive

Wood screw Koelner/Rawlplug TS-3040 3x40 mm features a conical (countersunk) head and a TX (Torx) drive, designed for secure, flush fastening of wooden elements. The screw's geometry enables the head to sit level with or below the surface of the workpiece, reducing the need for secondary finishing. The TX drive provides reliable torque transfer and reduces cam-out during installation, making it suitable for both manual and power drivers. The 3 x 40 mm size is intended for light to medium carpentry and joinery tasks where a discreet, strong connection is required.

Advantages

The conical countersunk head ensures a neat, flush finish without protruding fasteners, while the TX drive delivers efficient engagement and reduced slippage. The screw's dimensions make it versatile for a range of interior wood fixtures and furniture assembly tasks. Its design supports straightforward installation with consistent grip and alignment, resulting in a durable connection between wood components.

Suitable for

• General carpentry and joinery work
• Furniture assembly and fittings
• Interior wood trim and panel fastening
• Fixing small wooden parts and brackets

Key specifications

• Length: 40 mm
• Diameter: 3 mm
• Head type: conical / countersunk
• Drive type: TX (Torx)
• Material: suitable for use in standard interior wood (see manufacturer's guidance for specific material compatibility)

How to use

Pre-drill a pilot hole if working with hard or brittle wood to prevent splitting; select a pilot diameter appropriate to the wood species and screw diameter. Position the screw head flush with the work surface and drive using a TX bit matched to the drive size, applying steady pressure to avoid cam-out. For repetitive or high-volume work use a power driver with adjustable torque settings to control insertion depth and prevent overdriving. If a fully hidden connection is required, countersink the pilot hole to accommodate the conical head.

Usage recommendations

Use corrosion-resistant screws or appropriate surface treatment when installing in humid environments or with exterior wood. Match pilot hole size to wood density and always use the correct TX bit size to preserve drive geometry and ensure consistent installation quality.