Proline 31364 is a T-Handle Retainer Clip. It is used in a variety of applications, from sheet metal and wire constructions to furniture and window frames. It is composed of a threaded T-handle which is connected to a stem and a stem clip. The stem is usually made of metal, while the stem clip is usually made of plastic. The T-handle is designed to fit into a wide range of holes and fasteners, making it a versatile and easy-to-use clip. The clip can hold sheet metal and other materials securely together, allowing for a neat, tidy, and secure connection.