Helicoils and Oversize Threads
Helicoils and Oversize Threads
(OP)
I have run into a situation where a threaded stud that is slightly oversize is being installed in a Helicoil insert in an aluminum housing. I am thinking this is a bad idea, as the oversize stud will tend to wind the Helicoil up, thus losing the normal expansion forces that help hold it in place. What do you guys think?





RE: Helicoils and Oversize Threads
Is the stud within tolerance for the standard thread diameter, if so it should be okay.
desertfox
RE: Helicoils and Oversize Threads
Call the experts and ask your question. They are their to help: Emhart Technologies 203-924-4737. www.emhart.com
when you say oversize do you mean out of spec. or on the high side of a thread spec.
If your threaded stud is oversized to the point that it starts moving the helicoil then you have a whole batch of other problems, galling, improper torque, etc.
Good luck
RE: Helicoils and Oversize Threads
RE: Helicoils and Oversize Threads
RE: Helicoils and Oversize Threads
Heckler![[americanflag] americanflag](https://www.tipmaster.com/images/americanflag.gif)
Sr. Mechanical Engineer
SWx 2007 SP 4.0 & Pro/E 2001
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This post contains no political overtones or undertones for that matter and in no way represents the poster's political agenda.
RE: Helicoils and Oversize Threads