Abstract: A lock assembly for a hinged door has a pair of hasps that align with each other, each having a hole. A housing with an open back fits over the hasps. A retainer pin extends through an aperture in the housing and through the aligned holes of the hasps. The retainer pin has a pair of axially spaced apart shoulders. A key actuated lock member has a lock pin that extends perpendicular to the retainer pin and between the shoulders in an engaged position.

Abstract: An anti-theft device that can be used on different size trailer tongues of the type having a socket for receiving a tow ball of a trailer hitch. The device includes a base and a socket insert that projects from the base and is received within the socket of the trailer tongue. A pair of side members are joined to the base and oriented so that the trailer tongue must be passed between the side members for insertion and removal of the socket insert from the trailer tongue socket. Each side member has first and second holes formed therein. A retaining rod inserts into either of the first and second holes of the side members so that the retaining rod extends between the side members and above the trailer tongue to prevent the passage of the trailer tongue between the side members and thus prevent removal of the socket insert from the trailer tongue socket. The first and second holes are each located at different positions to accommodate trailer tongues of different sizes.