National Hardware's 4-1/2" Black Swivel Staple Safety Hasp is designed to secure a wide variety of doors, cabinets, boxes and trunks. Manufactured from hot rolled steel for durability. Easy installation For interior or exterior applications For security, all screws are concealed when hasp is closed. Manufactured from hot rolled steel For security, all screws are concealed when hasp is closed Ribbed design for extra strength