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Butterfly Bolt or Thumb Screw

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Chris TickTock06/07/2020 15:33:19
477 forum posts
31 photos
Posted by Perko7 on 06/07/2020 13:18:22:

Using a suitably long bolt, thread a butterfly nut onto the end until just fully engaged, silver solder in position, then cut off the head. I've used that process to make metric hex-head bolts in various sizes not available commercially. For most model engineering uses you will strip the thread before you break the silver solder bond.

Thanks for posting Perko, I like what you suggest and will note it for the future. this time i will go for Ian's method as in my opinion for this particular job it is best suited.


Perko707/07/2020 12:00:45
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