Galvanized Black Hex Flange Head Self-Tapping Wood Screw with Cutting Tail (Timber Screw)

Pre-drilling is generally not required for most common wood substrates. These screws are equipped with a sharp self-tapping tip and deep, aggressive wood threads that can directly cut into and tap into solid wood, plywood, MDF, OSB, particleboard, and other common wood materials in one step, significantly improving installation efficiency. For hardwoods with high density (such as oak, teak) or thick wood boards, it is recommended to drill a small pilot hole in advance to reduce the driving torqu

These screws are specially designed for wood fastening, and are widely compatible with various common wood substrates, including solid wood (pine, oak, etc.), plywood, MDF, particleboard, OSB board, antiseptic wood, and other wood-based panels. They are not recommended for use on metal, concrete, brick, or other non-wood substrates, as the wood-specific thread design cannot form a reliable bite in these materials, which may lead to loosening and potential safety hazards.

Yes, they are suitable for outdoor and humid environments. The surface is treated with a dense black electrophoresis/epoxy coating, which forms a strong anti-corrosion barrier, with excellent rust resistance, weather resistance, and water resistance. It can effectively resist moisture, rain, and UV erosion, and is suitable for outdoor wood structures such as wooden houses, wooden platforms, and fences. For extremely harsh coastal or highly corrosive environments, it is recommended to choose stai

The standard delivery time is 20-30 days. Custom orders may vary based on specific requirements and production schedules.

Samples in stock are available for free, but the freight cost must be collected from the buyer.