Loctite for screws

[Jeevesbond]

Originally Posted by KatGirl

Rolex uses Loctite, at the factory, so some folks think they should use it, also.

Kat


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Thanks kat. Sorry to question as in about to size myself for the first time and want to do it right. Bought the 1.6mm bergeon from amazon. Looks to be hollow end. Have a watch bracelet holder. Unscrew after heating with a hairdryer and remove pin. Then do a second time and remove link. Place back together. Apply locktite 222 with a toothpick into the hole of the link and then insert pin and screw back? Anything im missing?

[KatGirl]

Originally Posted by Jeevesbond

Thanks kat. Sorry to question as in about to size myself for the first time and want to do it right. Bought the 1.6mm bergeon from amazon. Looks to be hollow end. Have a watch bracelet holder. Unscrew after heating with a hairdryer and remove pin. Then do a second time and remove link. Place back together. Apply locktite 222 with a toothpick into the hole of the link and then insert pin and screw back? Anything im missing?

That’s it. Make sure you put the Loctite in the opposite hole, from where you insert the screw. Rolex ADs actually have a machine, that Rolex invented, and patented, to heat the links when sizing bracelets, for brand new owners. I thought that was cool. I actually use a Bic lighter for heating the links when I resize my bracelets.

Kat


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[Andad]

Originally Posted by Driver8

That’s right. You don’t want to be forcing the screws too much if you have to undo them as they’re pretty small and you don’t want to damage the head. As you say, you want just enough strength to prevent any backing out. You absolutely don’t want anything too strong. As I say above Doxa used to use some ludicrously strong threadlock and people have ruined screws trying to get them out even with heat.

I read somewhere that 222 is pretty much identical to the white threadlock that Rolex use at the factory, so that’s definitely the way to go. Used with the correctly sized hollow ground screwdriver and you’ll have no problems and no damage to the screws.

I’ve been using it for years and I’ve never had a screw back out yet, so it seems to resist water and sweat perfectly well.

I use many loctite products in my engineering business including 221 & 222.

The specs on the loctite products being discussed state that it will hold its strength to 150C.

Hot water will have little effect but may give the ‘unscrewer’ a warm feeling of positivity as they apply the screwdriver but little else.

The blue colour fluoresces under UV light to tell me that it has been applied correctly.

Google ‘tryloctite’ and we can dispense with all of the misinformation regarding 221 and 222.

[sgt10p]

Great post, thanks

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