High-Strength Hex Head Fixings for Timber & Masonry Applications. Advanced Coach Screws – Hex Flange – Yellow are robust, heavy-duty fixings designed for securing timber to timber, or timber to masonry using wall plugs. The integrated washer-style hex flange head ensures improved clamping force and load distribution, making them ideal for structural timberwork, landscaping, fencing, and general construction. The yellow zinc plating provides corrosion resistance for indoor and sheltered external environments.. Key Features & Benefits. Hex Flange Head: Built-in washer for better load spread and reduced risk of pull-through.. Heavy-Duty Strength: Reliable fixing for structural and high-load applications.. Zinc Yellow Plating: Light corrosion resistance for interior and protected outdoor use.. Coarse Thread Design: Provides strong grip in timber substrates for long-lasting security.. Quick Installation: Easy to drive using a socket or spanner with minimal surface damage.. Product Details. Head Type: Hex Flange (washer integrated). Drive Type: Hex socket/wrench. Finish: Zinc Yellow Passivated. Thread Type: Deep, coarse thread for high pull-out resistance. Application: Timber-to-timber or timber-to-masonry (with plugs). Application Instructions. Drill Pilot Hole: Prepare substrate by drilling an appropriate pilot hole, especially in hardwood or masonry.. Position and Drive: Align components and drive the screw using a hex socket or spanner until tight.. Verify Fixing: Check for flush seating of the flange head and secure engagement in substrate.. Limitations. Not suitable for fully exposed exterior environments without additional weather protection.. Use appropriate wall plugs when fixing into masonry.. Health & Safety. Always wear protective gloves and safety goggles during installation. Use suitable tools to avoid overtightening or shearing. Follow best practices for load-bearing installations.
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