its 5/16 - 18 TPI.
I feel stupid now. I didn't notice the note on Black and Decker's parts site actually shows the thread size for the bolt and nut.
It just so happens I had to replace some hardware on a bench grinder stand. The wing nut from that is the same thread.
Hello all. Does anyone happen to know what thread size the wingnut is for pushhandle on an LM175 or MM275?
the wingnut part number is 243573-00. the bolt is 241947-01.
I have been to B&W's part site however they don't list the thread in the description. Neither does any other parts site...