I'm after a couple of M6 (or thereabouts) wing nuts which have longer 'wings' than a standard one. I.e. a standard M6 wing nut is probably
25mm or so across (possibly less) and I'm after one that's, say, about 50mm so that it can be tightened rather tighter than a standard one.Any suggestions as to where I might buy some and/or other ways to attain the same end?