The TIMCO Twin-Threaded Countersunk Silver Woodscrews feature a traditional twin-thread design with single lead start for fast installation in soft timber applications or masonry with plastic plugs. These high-quality screws are manufactured from C10-18 carbon steel with zinc finish and include a double countersunk head that reduces likelihood of head shear while assisting completion of countersinking. The 60° twin-threads with parallel shank provide faster insertion and greater pull-out resistance, while surface hardening up to 750 HV prevents torque shearing under load. With a 25° sharp point and single lead design, these screws offer fast start and improved thread acceptance for reliable fastening performance.