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Screw Fischer 670692
Fischer 670692 screws are metal wood screws designed for secure fastening in timber and wood-based materials. Each screw is 140 mm long with a 70 mm threaded section and a 6 mm outer diameter, supplied in packs of 50 to support medium to large projects. The design focuses on reliable grip and structural fastening where long-reach screws are required for joining or fixing thicker wooden elements.
These screws combine a long unthreaded shank with a substantial threaded portion to provide strong pull-through resistance and accurate clamping of wooden parts. The 6 mm diameter offers a good balance between shear strength and ease of pre-drilling, while the 140 mm length allows penetration through thicker members. Supplied in a pack of 50, they reduce the need for frequent reordering and are suitable for repeated use across multiple work sites.
Select an appropriate pilot drill bit for the 6 mm diameter to avoid splitting the wood; pre-drilling is recommended for hardwoods or near edges. Position the screw and drive it with a compatible driver or power tool at moderate speed, maintaining straight alignment to ensure the threaded portion engages correctly. For through-fixing, ensure the unthreaded shank sits within the clearance hole to allow clamping of joined parts without thread interference. Check that the screw head is flush or slightly countersunk as required by the application.
Use corrosion-resistant coatings or additional protective measures if the screws are to be used in permanently wet or highly corrosive environments. Store packs in a dry place to prevent surface oxidation prior to installation.
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