I am trying to get a very old Lionel No 38 Loco put back together and running. The "cow-catcher" on both ends of the loco are held on with two fillister-head slotted screws (see pics). One of these screws has stripped threads.
The screw fits a #6 hole, but it is not a #6-32, or #6-40, or a #6-48. Those are the only #6 options on my thread-finder. The screw is 1/2" long.
What is the threading on this oddball screw? Any ideas on where to get a replacement?
Thank you in advance.