A traditional twin-thread woodscrew with single lead start for a fast installation. Roundhead screw used for clamping to flat surfaces or to achieve a high aesthetic finish. Partially threaded from 1 1/4 and above Made from C10-18 steel to ensure consistent quality 60 twin-threads with parallel shank for faster insertion and greater pull-out resistance Surface hardened up to 750 HV to prevent torque shearing under load and a core hardness of up to 450 HV for improved ductility 25 sharp point and single lead for a fast start and improved thread acceptance" Gauge: 6 Length inch: 1 Head Type: Round Recess Type: Pozi Point Type: 25 Sharp Driver Bit Size: PZ2 Finish: Zinc Material: Carbon Steel Timco Twin-Threaded Woodscrews - PZ - Round - Zinc (Size 6 x 1 - 200 Pieces) in Silver