To tighten the wing nut, wrap the cloth clockwise and anti-clockwise to loosen it. When starting ensure the cloth "bites on" to the wing nut before wrapping more. Once the cloth has gained a grip it will hold. Continue wrapping more cloth around, to gain more torque and purchase on the wing nut.
Wing screws are a type of fastener designed to be tightened and loosened by hand. Also known as wing thumb screws, they feature wing-like projections that form the head of the screw and provide thumb and forefinger leverage for turning.