Construction wood screw Koelner TS-4060 4x60 mm conical head TX drive

Koelner TS-4060 construction wood screw 4x60 mm features a conical (countersunk) head and a TX (Torx) drive, designed for fastening wooden elements where a flush finish is required. The screw's dimensions and head shape allow it to sit level with the timber surface after installation, making it suitable for visible joins and applications where a smooth appearance matters. The TX drive reduces cam-out and allows reliable torque transfer during driving with compatible bits or drivers.

Advantages

This screw provides secure mechanical fastening for wood with reliable seating due to its conical head. The TX drive offers improved bit engagement and reduced slippage compared with slotted or Phillips drives, enabling faster and more controlled installation. The 4x60 mm size balances penetration depth and pull-out resistance for common timber thicknesses used in construction and furniture work.

Suitable for

• Joining structural wooden components such as studs, battens and framing
• Furniture assembly where flush countersunk heads are required
• General carpentry and joinery tasks including interior trim and panel fastening
• Repair and retrofit work in wooden structures

Key specifications

• Diameter: 4 mm
• Length: 60 mm
• Head type: conical / countersunk
• Drive type: TX (Torx)
• Material: steel (suitable for wood fastening)

How to use

Select a TX bit that matches the drive size to ensure proper engagement. Pre-drill a pilot hole when working near edges, with hardwood, or when preventing splitting is critical; choose pilot diameter according to timber density. Drive the screw until the conical head sits flush with the wood surface. Use an adjustable torque setting on power drivers to avoid over-tightening and stripping the drive or damaging the surrounding material.

Usage recommendations

For best results, store screws in a dry place to avoid corrosion. When working outdoors or in humid environments, combine with appropriate surface protection or select compatible coated fasteners. Use a matched TX bit and moderate torque for repetitive driving to maintain bit life and consistent seating.