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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. NOTE: Partially threaded.
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