Over Hill Sailing Club
Join Date: Feb 2009
Location: Adirondacks NY
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Re: Mounting hardware on Boom
The correct way to tap ANY metal is to back the tap out often, use oil, and don't try to muscle through. Aluminum is very easy to strip so great care must be taken when getting the tap started. Go until you first feel the threads start to grab and back off, go a LITTLE bit more and back off again. Backing off clears the threads. Until you have a couple of solid threads in, and it's obvious that you are making clean threads, don't dare over-torque or you'll strip the threads right out, eventually winding up with a stripped out hole. Easy-does-it.
I really like s.s. rivets. I bought a heavy duty pop rivet tool and often use rivets. I don't think they are as secure as well threaded holes in thick enough metal but if you're trying to tap aluminum that's less than 1/4" thick, there just aren't many threads in the tapped hole.
Alberg 35: With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship.
Last edited by smurphny; 04-03-2014 at 01:13 PM.