Abstract: A plastic snap nut is in the form of a molded plastic tubular member with a radially extending flange. The tubular member has a threaded bore and a slot formed through its wall into the bore. The slot width is slightly less than the diameter of the bore. The nut is sufficiently resilient, allowing it to be snapped onto an elongated threaded rod from the side at any location along the length of the rod, making it unnecessary to screw it on to the rod from one end thereof. Once secured, the threads on the nut engage the threads on the rod, allowing the nut to be repositioned by rotating it.