Used on sander/grinder jsg6 bench. 2b thread class right-hand 16 thread quantity per inch nut, hexagon 3/8-16 secures the tensioning adjustment handle, JSG6-078.
Used on milling machine vertical mdl jtm-4vs. right-hand 18 thread quantity per inch nut 5/8-18 used on the varible speed head assembly of the milling machine. to secure the timing belt pulley, vs-062.
Used on milling machine vertical mdl jtm-4vs. right-hand 20 thread quantity per inch jam nut 1/2-20 used on the leadscrew assembly to secure the bellcrank, as a jam nut.