The term 'lock part' refers to the components of a lock. A HASP is a metal loop that is used to secure a door or lid, usually with a padlock. HAIR is a thin wire that is inserted into a lock to prevent it from being opened without the correct key. A BOLT is a metal bar that slides into a socket to secure a door or window. A TUMBLER is a cylindrical mechanism inside a lock that must be aligned in order for the lock to open. Finally, a TALON is a type of lock that uses a series of pins to secure a door or window.