TIMCO Twin-Threaded Countersunk Woodscrews Zinc 8x1.5in TIMbag 350

This traditional twin-thread woodscrew is designed for quick installation with a single lead start. Partially threaded, it is suited for soft timber applications or masonry when used with a plastic plug. The screw is made from C10-18 steel to ensure consistent quality and features 60° twin-threads with a parallel shank for faster insertion and improved pull-out resistance. It combines a 25° sharp point with a single lead to help initiate threading smoothly, and its surface is hardened to protect against torque shear under load while maintaining ductility through a core hardness of up to 450 HV. The size is 8 x 1.5 inches, with threading described as partially threaded, aligning with its fast-start, high-acceptance design.

Features

• Partially threaded for fast start
• 8 x 1.5 inches size
• 60° twin-threads with parallel shank
• C10-18 steel for consistent quality
• Surface hardened to 750 HV; core to 450 HV