[DarkKnight (Kev)]

I want to attach a pair of guide 'scope rings to a Losmandy dovetail plate. Both have 1/4" threaded holes, hopefully with the same pitch.

I seem to recall reading or hearing somewhere that it is not a good practice to screw two threaded items together as they may not mate perfectly and I can sort of understand why.

If this is a problem I think I can see two possible solutions. Firstly, use my small round file to remove one lot of threads, probably from the 'scope rings, or I was wondering if an appropriate spring washer would take up the slack in the mounting face.

Any advice appreciated.

Cheers

Kev