Does anyone know of any front axle nuts that are slightly smaller diameter than what I'm guessing is fairly standard? Here's why... building track bike for my wife and here is the dropout for the Leader fork (1805 TR) I have:
All the axle nuts I have (lower one in that photo) are just slightly too big to fit into that opening. The upper nut is from a road skewer/axle I use for a road wheel that I sometimes use on track bike... about 2mm less in diameter, and fits neatly into the dropout.