These forgefix wing nuts are a convenient alternative to the standard hex nut and allow hand tightening rather than having to use spanners or other tools the nuts are bright zinc plated for increased corrosion resistance also known as a thumbscrew the wing nut has two large metal wings for easy tightening and loosening applicationwhere ever a hand tightened fastening is required used where frequent adjustments are needed or part removal can be made quickly at some later stage can be used with al