Sticky Threads

[CrossSlide]

I'm looking for something to coat threads with that will bind the thread to some degree but not permanently. I need to be able to set and reset a screw to a certain length with my fingers but I don't want it change positions from vibration. Is there anything out there like this?

 

[kd4gij]

A lock nut would be your best bet.

 

[John Hasler]

Loctite 222 ("purple") might be what you want.

 

[Kernbigo]

blue loctite

 

[RJSakowski]

Many years ago when we had adjustable carburetors, a compression spring was used between the head of the needle valve screw and the carburetor body. The provided a bias on the thread as which resisted movement of the needle valve.

Bob

 

[brino]

Hi CrossSlide,

This thread has some recommendations for products like that:
http://www.hobby-machinist.com/threads/sb-gibs-coming-loose-why.37608/#post-321976

I have never used them.
Please let us know what you try that works.

-brino

 

[francist]

Many years ago when we had adjustable carburetors, a compression spring was used between the head of the needle valve screw and the carburetor body. The provided a bias on the thread as which resisted movement of the needle valve.

Bob

I believe bicycle dérailleurs still use this method for setting the stops.

-frank

 

[CrossSlide]

I should have thought about the spring method I remember it well on my dirt bikes carburetors. The spring looks like the easiest although the Delrin plug has some merit. Thanks all!

 

[Tony Wells]

Since you specified "with my fingers", that eliminates several possible methods, such as the lock nut, unless the size allows for a knurled style nut. Even the soft setting thread locking compounds I have used may prove difficult to move with fingers.

I'd vote along with the spring recommendations. It's a tried and true method.

 

[John Hasler]

blue loctite

Blue would be too stiff.