TIMCO Twin Threaded Woodscrews PZ Double Countersunk 12 x 3 1/2 Zinc Plated Box of 100

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: 12 x 3 1/2 inches Material: C10-18 Steel Surface hardness: up to 750 HV Core hardness: up to 450 HV Plating: Zinc 3-5 microns Thread type: Partially threaded from 1 1/4 inches Compatibility and accessories Suitable for TIMco and all other leading plastic expansion plugs Installation Designed with a 25° sharp point and single leading thread for easy penetration and improved thread acceptance Double countersunk design reduces the likelihood of head shear and assists in completing countersinking Usage Primarily used in soft timber applications or masonry with a plastic