Spinner-Grip™ nuts are a superior alternative to standard flange nuts as well as locknuts, including Nylon® insert locknuts. Jergens Spinner-Grip Nuts are Grade 8 strength and quality, and are more effective than standard hex nuts, flange nuts, or other locknuts at maintaining clamp load under heavy vibration. The unique design locks the nut to the part, not to the bolt threads. Flat washers are not needed, except in slotted applications.

Unlike common torque lock nuts, they will not gaul bolt threads or the plating on fasteners. Their all-metal, free-spinning design eliminates the need to tighten by "wrenching-down"— found in other similar products — greatly speeding installation. Unlike Nylon insert locknuts, Spinner-Grip nuts can be reused many times, and will not be effected by humidity. Jergens maintains an inventory of un-plated nuts so customers can specify their choice of plating. Sizes are available from ¼-20 to M16-2.00.