Yes, threaded inserts. There are many kinds but they are used almost universally for cases where the material to be threaded is soft, like aluminum. They also eliminate or reduce galvanic corrosion which is an issue with steel screws in aluminum. (that said, as long as you keep water away you are OK.) Still these inserts are the "class" way to go and will save some broken taps.
As for a seal, it is hard to beat o-rings. A proper designed o-ring seal does not need much clamping pressure as it depends on the pressure inside to force the ring in place and hold it there. On Fri, May 19, 2017 at 12:51 PM, Lincoln <linc...@ampmonkeys.com> wrote: > > > > > There are a lot of variables involved. Run the screws in and out of the > aluminum a number of times and > > the holes will fail first ….There are other gotchas as well. > > > > Bob > > > > This is where helicoils come in to play. They are used a lot on the CVD > furnaces that I used to make parts for. They are not just for un-buggering > a thread. They would be installed form the get go and could be replaced > should something gall. > > Link > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
