The term PADLOCK PART can be solved by the four-letter word HASP. A HASP is a type of hardware typically used to secure doors, gates, and other items. It consists of a metal loop that is attached to one side of the door or gate, and a hinged metal plate that is attached to the other side. The two pieces are connected by a pin or bolt, and the padlock is inserted through the loop and the plate to secure the door or gate.