Screw Fischer 670180 70 mm

Fischer 670180 70 mm screws are metal wood screws designed for reliable mechanical fastening in wooden constructions and joinery. Each pack contains 500 pieces of 70 mm length screws with a 4 mm nominal diameter and a 42 mm thread length, suitable for creating strong connections in furniture assembly, carpentry and general woodwork. The screws are intended for use where a long shank and a short smooth part are needed to clamp two wooden elements securely.

Advantages

These metal wood screws provide consistent mechanical performance with a long threaded portion for good pull-out resistance and a 4 mm diameter that balances shear strength with ease of driving. Supplied in bulk packs of 500, they are convenient for professional jobs and larger projects. The combination of 70 mm overall length and 42 mm thread length makes them suitable for joining medium-thickness wooden parts while minimizing splitting when predrilled correctly.

Suitable for

• Furniture assembly and repair
• Carpentry and framing tasks
• Fixing wooden fixtures and fittings
• Interior wood joinery and DIY wood projects

Key specifications

• Material: metal (steel)
• Overall length: 70 mm
• Thread length: 42 mm
• Nominal diameter: 4 mm
• Pack quantity: 500 pieces
• Application: for wood materials

How to use

Select an appropriate pilot drill equal to approximately 70–80% of the screw core diameter to reduce risk of splitting in hardwoods; for softwoods the pilot hole can be slightly smaller. Position the screw and drive with a compatible screwdriver bit or power screwdriver at moderate speed, maintaining axial alignment. For visible surfaces consider countersinking to achieve a flush finish and apply a suitable wood filler or cover cap if required. Use appropriate corrosion protection or surface treatment when screws are used in humid or outdoor environments.

Usage recommendations

For optimum results, predrill pilot holes in hardwoods and when working near edges. Use a torque-controlled driver to avoid over-tightening and strip damage. Store packs in a dry environment to prevent surface corrosion before use.