T17 Hex Head 12-11x35-75 CL4

Product Overview
This product is a specialized fastening screw designed for timber structure engineering. Featuring a 12G thick shank and 11-thread-per-inch coarse thread profile, available in lengths from 35–75mm. With a hexagon flange head combined with a T17 wood-cutting point, and a CL4 Class 4 anti-corrosion coating on the surface, it is manufactured from a heat-treated carbon steel substrate. Eliminating the need for pre-drilling, it can securely fasten various types of timber and is suitable for outdoor and high-corrosion environment timber construction.

Product Applications
Outdoor preservative-treated timber projects: Fixing decks, boardwalks, fences, wooden house exterior walls, and preservative-treated timber flooring;
Steel–timber composite buildings: Light-gauge steel framing with timber liners, roof purlins, and timber frames for sunrooms;
Interior woodwork infrastructure: Timber joists, engineered wood panels, wooden ceilings, and shelving frameworks;
High-corrosion scenarios: Coastal seaside wooden houses and timber structure fastening in humid industrial zone environments.