Abstract: A rigid base interconnects a pair of spaced legs, one of the legs being resiliently hinged to the base. A locking socket with a cavity is secured to an end of one of the legs distal the base and a locking stud is secured to the end of the other leg distal the base, the stud for manual resilient insertion into the socket cavity. The stud is rectangular having a wide transverse dimension and includes a locking tip with at least one barb which extends along the width. A U-shaped spring steel female locking member is secured in the socket cavity and has at least one locking tang to engage the at least one barb. The U-shaped member comprises any one of a plurality of different tang arrangements each for engagement with the same given barb configuration and are randomly assembled to the sockets of different seals.