[Public-list] Stainless Machine screws into Aluminum Masts

[John Birch]

Tefgel or Sikkens 291 will work well as an anti seize on SS fine thread 
machine screws in your mast - source Klacko Spars - been through the mast 
refurbishment game and leaned a ton. One thing for sure - mast work it time 
consuming, I spent a week with them helping to remove and reinstall 
fittings.

Oh, by the way, Gord is right - if you can't match the new screws to the old 
holes you can fill the old holes with drilled and tapped SS set screws 
which will bring a lot of strength back into the mast if you have to drill 
new screw holes for the new Sail Track and use SS machine screws to secure 
it.

Suggest you use 291 to bed the new track and break the electrolytic contact 
between the SS track and Aluminium mast. Tefgel or 291 for the machine 
screws so they don't seize and corrode the threads.

Cheers,

John

----- Original Message ----- 
From: "Michael Connolly" <crufone at sbcglobal.net>
To: "Alberg 30 Public List -- open to all" <public-list at alberg30.org>
Sent: Thursday, January 06, 2005 12:18 PM
Subject: Re: [Public-list] Stainless Machine screws into Aluminum Masts


> Mark,
> Thanks for the tip.  In this instance, mainsail track, I would rather 
> eliminate the hassle by using Aluminum rivets as were used by the original 
> manufacturer.
>
> Another super product for taping non-ferrous metals is called 'Tap Ease'. 
> It usually comes in a pint or quart can with a squirt nozzle.  Mill supply 
> houses will carry it and perhaps auto parts stores, heck maybe even 
> Walmart has it.
>
> Mpete53 at aol.com wrote:
> Removing stainless fasteners from aluminum, try heat. A propane torch
> usually gives enough heat to expand the aluminum so that you can remove 
> the
> fastener. The paint it would be toasted.
>
> Taping Aluminum. A friend of mine gave me some sulfur based tapping fluid,
> he said the name of the product is "Sul floe." The stuff works great. The 
> taps
> cut clean and easily. Where to get it? I don't know, but if you find it 
> try
> it.
>
> Mark
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