A nut with a pair of wings to enable it to be turned without tools, used where frequent adjustments are needed or part removal can be made quickly at some later stage. This nut area also called tensioning nut or tension nut Available in MM and Inch size . Material : SS 304 grade SS 316 grade SS 202 grade Range : · Dia: 5 mm - 16mm 532" - 1" Also Known as SS Wing nut or SS butterfly Nut