Abstract: A flared tube sitting on a base is embedded in a concrete slab, and a casement on a shackle can be inserted into the tube to make up the coupling. The casement holds a plunger which can be locked into a position in which its head urges balls out of the casement for engagement with the flare tube. The plunger lock includes a fork locking the casement to the plunger at the other end. The plunger head has a conical tip so that upon retraction the balls can be retracted to release the coupling or to insert the casement to make up the coupling. The flared tube is clamped down onto the base which in turn is constructed for fastening to re-bar structure in the concrete.

Abstract: A cold rolled lag stud has one end fastened to a wall or other support structure, while carrying a stud head capture head on its other end. The capture head has been bent from a rectangular blank and has a base, an upright front wall, a rearwardly and downwardly slanting top, and an end portion extending parallel to the base. Weld-assisting protrusions on the base and the end portion hold the lag stud and are welded thereto. The top of the head and the front wall have a slot for insertion of the head and shank end of the stud to be captured.

Abstract: A joist hanger has a shroud with a rear wall and side walls with aligned openings for receiving the legs of a U-shaped pin. A jack screw, straddled by the legs, or a simple support plate rests on the pin to support a joist end. An L angle piece is welded or hinged to the rear wall. The level of the joist can be changed by the jack screw, and/or by turning a threaded hinge bolt, permitting the shroud to ride up or down on the bolt.

Abstract: A joist hanger has a shroud with a rear wall and side walls with aligned openings for receiving the legs of a U-shaped pin. A jack screw, straddled by the legs, or a simple support plate rests on the pin to support a joist end. An L angle piece is welded or hinged to the rear wall. The level of the joist can be changed by the jack screw, and/or by turning a threaded hinge bolt, permitting the shroud to ride up or down on the bolt.