An Hardware issues... Mainly nuts..

[George_Pfaltzgraff]

So I'm finally getting around to putting some work into my Skybolt, and I can't find the right nut... I'm trying to attach the torque plates for the breaks (I really hope that's the right term) and I need an all metal lock nut for an an4-6 is it an an363? I didn't think it had the notches in the head..? I know I can't use nylock nuts, as they probably get too hot

Any help would be appreciated here!

 

[Lotahp1]

 

[Larry Lyons]