TIMCO Twin Threaded Woodscrews PZ Double Countersunk 4 x 1 Zinc Plated Box of 200

General description The TIMco Twin Thread Zinc Countersunk Woodscrew is designed for general use in softwood and various types of hardwood. These screws feature a double countersunk design and are plated in zinc, ensuring durability and resistance to corrosion. The twin thread design allows for faster insertion and greater pull-out resistance, making them ideal for a variety of applications. Technical specifications Size: 4 x 1 inch Material: C10-18 Steel Plating: Zinc 3-5 microns Surface hardness: Up to 750 HV Core hardness: Up to 450 HV Thread type: Twin thread with single lead start Point type: 25° sharp point Thread angle: 60° twin-threads Compatibility and accessories Suitable for TIMco and all other leading plastic expansion plugs Installation Designed for easy penetration and thread acceptance with a 24-degree sharp end Partially threaded from 1 1/4 inch for improved performance Usage Primarily used in soft timber applications Can also be used in masonry with a plastic plug