Hasp

noun
- A slotted hinged metal plate that forms part of a fastening for a door or lid and is fitted over a metal loop and secured by a pin or padlock.
 - A similar metal plate on a trunk or suitcase with a projecting piece that is secured by the lock.

verb
(archaic)
- Lock (a door, window, or lid) by securing the hasp over the loop of the fastening.