Product Overview
This product is an Australian Standard T17 cutting‑point hexagon washer‑head self‑tapping screw, specification 12‑11×25, made of carbon steel with heat treatment and a CL4 high‑durability anti‑corrosion coating, specifically designed for connections between metal sheets and timber structures. The integrated waterproof flange head, combined with the T17 wood‑cutting point and coarse threads, provides strong load‑bearing capacity, meeting the fastening requirements in outdoor corrosive environments such as high humidity and coastal areas.
Product Applications
Roof and wall construction: fixing color‑coated steel tiles and metal wall panels to wooden purlins and furring strips;
Outdoor preservative‑treated wood projects: fastening of decks, planters, fences, pavilions, and other open‑air timber structures;
Special high‑corrosion environments: coastal buildings, pool surroundings, and industrial‑area wooden auxiliary components;
Light steel‑timber composite buildings: installation of decorative metal panels, light‑gauge steel sheathing, and splicing with timber battens and plywood.
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