REPLACING CONVENTIONAL NUTS & WING NUTS The new PinchClip™ (Patent Pending) from William Feldman Studio is a fast, secure, advanced accessory that is intended to replace conventional nuts and wingnuts on many types of threaded drum hardware, including cymbal tilters and hi-hat clutches. The stainless-steel flange flexes when pinched so that the holes in its overlapping arms align— allowing the clip to be quickly applied and removed— yet the specially designed arms securely grab on to any threaded device when the finger pressure is released.