**Screw Features** *25 degree sharp point for easy penetration into wood/chipboard/MDF, plastics and thin sheet metal.|*Surface hardened up to 750 HV to prevent torque shearing under load and a core hardness of up to450 HV for improved ductility.|*Plated to give a high resistance to corrosion.|*Made from C10-22 Steel to ensure consistent quality.|*Double countersunk reduces the likelihood of head shear and assists completion of countersinking.|*40 degree deep single thread to provide a secure fixing with high pull-out resistance.