Flange Locknut Alternative to Standard Flange Nuts
May 2006
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Spinner-Grip™ nuts are said to be a superior alternative to standard flange nuts as well as locknuts, including nylon-insert locknuts. The Spinner-Grip Nuts are designed to be of grade 8 strength and quality, and to be more effective than standard hex nuts, flange nuts or other locknuts at maintaining clamp load under heavy vibration. A 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, the supplier says, they will not gaul bolt threads or the plating on fasteners.
The supplier says the all-metal, free-spinning design eliminates the need to tighten by wrenching-down, as is needed on some similar products, and this results in quicker installation. The nuts are said to be unlike nylon insert locknuts in that they can be reused and will not be affected by humidity. Jergens, Inc., www.jergensinc.com

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