MACSIM Type 17 Batten Screws Yellow Zinc Plated are heavy-duty fasteners engineered for securing larger timber joints, such as decking sub-frames. Designed for efficient installation, these screws feature a fluted Type 17 point that captures wood chips, reducing splitting and driving in smoothly. With a zinc-plated finish for enhanced corrosion resistance, they’re ideal for outdoor timber construction. Features + Benefits: Efficient Thread Cutting: Class 1 Type 17 point with fluting ensures smooth penetration and chip clearance.Flush Finish: Bugle head with self-embedding ribs sits neatly in timber for a clean, professional result.Easy Installation: 5mm hex drive and countersunk design enable fast, hassle-free driving.Rust Protection: Yellow zinc plating offers superior corrosion resistance for outdoor durability.Split-Resistant: Knurled shank helps prevent timber splitting during application.Fast Driving: Saw tooth thread enhances drive speed and reduces installation time.Product Uses: Perfect for decking sub-frames, fencing, timber joints, and general outdoor wood construction. Suitable for softwoods and pre-drilled hardwoods.Pack Size: Available in multiple lengths and pack sizes to suit a variety of project needs.