Hasps are installed on doors, gates, and cabinets so that they can be secured when closed. Adjustable hasps can be can be used on doors that are warped or sagging. Multi-hinged hasps can accommodate surfaces with curves and angles and can be used on doors, gates, and cabinets that do not close flush. Fixed hasps can be used on flush-closing doors, gates, and cabinets. Corner hasps can be used to secure doors to a perpendicular surface.