TIMCO Twin Threaded Woodscrews PZ Double Countersunk 8 x 5/8 Zinc Plated Box of 200

Double countersunk head reduces the likelihood of head shear and assists completion of countersinking 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, Weight: 0.5291094288 pounds, Manufacturer: TIMCO