Press fit dowel pin

[Rcdizy]

If i drill and ream a hole .0005 undersize for a 3/16 dowel pin, and want it permanent....

If i drop a drop of loctite in the blind hole, will it stop the pin from going all the way in by hydraulic lock?

 

[T Bredehoft]

Yes

Put the Loctite on the pin, just before you insert it.

 

[RJSakowski]

A small scratch on the side of the hole can be sufficient to prevent hydraulic lock. Dowel pins are also made with a groove for the same reason. https://www.mcmaster.com/dowel-pins

 

[MrWhoopee]

Dowel pins are sized to be a press fit in an on size hole.

 

[Cooter Brown]

Heat up the .0005" undersized hole with a torch to about 200 degree F and drop the pin in, it will never come out....

 

[pacifica]

Heat up the .0005" undersized hole with a torch to about 200 degree F and drop the pin in, it will never come out....

Agree. Loctite bearing mount 680 has failed on me, but not a heated press fit.

 

[P. Waller]

If you made it a "press fit" why would you use a retaining compound at all?
Drill the hole, ream the hole and install the pin with a press, you will then find it difficult to remove if this should be required if it is not a through hole.