TIMCO Twin-Thread Mixed Tray Woodscrew - Zinc - Mixed Sizes - Box of 1140

Double countersunk head reduces the likelihood of head shear and assists completion of countersinking 60 degree Twin-threads with parallel shank for faster insertion and greater pull out resistance The 25 degree sharp point and single leading thread achieves a fast start and improved thread acceptance Partially threaded from 1 1/4” and above Made from C10-18 steel to ensure consistent quality Surface hardened up to 750 HV to prevent torque shearing under load and a core hardness of up to 450 HV for improved ductility, Weight: 1.77 pounds, Manufacturer: TIMco