Screw FISCHER 670501 — steel wood screw, 100 mm length, 6 mm diameter, 6 cm thread, pack of 25

FISCHER 670501 is a steel wood screw designed for secure wood-to-wood connections. The screw measures 100 mm in overall length with a 6 mm diameter and a 60 mm threaded section. Supplied in a pack of 25, these fasteners are intended for general carpentry, joinery and construction tasks where a long shank and extended thread provide reliable clamping and pull-out resistance.

Advantages

These steel wood screws combine a long unthreaded shank with an extended threaded portion to allow firm seating of joined wooden elements while preventing unwanted splitting. The 6 mm diameter provides good shear strength for common structural and non-structural timber connections. A consistent manufacturing process ensures dimensional accuracy and interchangeability across the pack, simplifying installation planning and inventory management.

Suitable for

• Wood-to-wood connections in framing and structural carpentry
• Fixing wooden battens, cleats and connectors
• General joinery, furniture assembly and repair
• Outdoor carpentry where steel fasteners are acceptable with appropriate finishing

Key specifications

• Material: steel
• Overall length: 100 mm
• Nominal diameter: 6 mm
• Thread length: 60 mm
• Pack quantity: 25 pieces

How to use

Pre-drill a pilot hole appropriate for the 6 mm nominal diameter and the wood species to reduce splitting and ensure accurate alignment. Position the screw so the unthreaded shank sits within the first member to allow the threaded portion to draw the second member tightly to the first. Drive the screw using a compatible bit and controlled torque to avoid over-tightening; countersink the head if a flush finish is required. For repetitive installation, use a power driver with adjustable torque settings to maintain consistent results.

Usage recommendations

Use corrosion-resistant coatings or stainless steel alternatives for prolonged outdoor exposure or in contact with treated timber. Match pilot hole diameter and drilling depth to the wood density and screw diameter, and verify torque settings on power tools to prevent thread stripping or wood crushing.