Screw Fischer 670467 220 mm Stainless Steel 50 pcs

FISCHER 220 mm stainless steel wood screw with 70 mm thread length offers a durable fastening solution for demanding timber connections. The screw measures 220 mm overall with a 6 mm shank diameter and a 70 mm threaded portion, supplied in a pack of 50. Constructed from stainless steel, the fastener is designed to resist corrosion and maintain mechanical integrity in indoor and outdoor wood applications where a long shank and partial thread are required.

Advantages

The stainless steel construction provides corrosion resistance and long-term durability. A 220 mm total length combined with a 70 mm thread allows reliable clamping of thick timber elements while the 6 mm diameter ensures sufficient shear and tensile strength for typical structural and joinery tasks. Supplied in a pack of 50, these screws reduce the need for frequent reordering and are convenient for medium-sized projects.

Suitable for

• Joining thick wooden beams and posts
• Exterior timber installations where corrosion resistance is required
• Decking substructure and heavy-duty carpentry
• Timber framing and structural wood connections

Key specifications

• Material: stainless steel
• Total length: 220 mm
• Thread length: 70 mm
• Diameter: 6 mm
• Pack quantity: 50 pieces
• Thread type: partial thread suitable for clamping applications

How to use

Pre-drill a pilot hole appropriate to the shank diameter and wood species to reduce splitting and ensure accurate alignment. Insert the screw and drive it with a compatible bit or socket at moderate speed, applying steady pressure to seat the head flush or slightly countersunk depending on the desired finish. For exterior applications, ensure contact surfaces are free of debris and that stainless steel fasteners are used with compatible materials to avoid galvanic corrosion.

Recommendations

Use a pilot hole diameter matched to the core shank for hardwoods and slightly smaller for softwoods. When fastening dissimilar metals or treated timber, follow accepted practices to prevent galvanic corrosion and material incompatibility. Store screws in a dry environment and avoid mixing with incompatible metal filings.