DimcoGray Corporation Female Wing Knob DK-221

Wing knobs are designed to give good leverage with minimal grip strength, making them ideal for applications that require frequent tightening and loosening, or in more precision applications. These knobs do not require tools and can be easily adjusted using only a thumb and forefinger, similar to thumb screw knobs, but with an added arm. We carry wing knobs in a wide variety of thread sizes from 1-inch wing knobs to 3-inch wing knobs, ensuring you'll find exactly what you need by the manufacturer you trust. . Black Polypropylene Female Wing Knob has a Threaded Insert/Through Hole for mounting onto 5/16-18 threads. The Flared wing design is easily gripped for frequent tightening.