Thanks for all the feedback guys. I'm always impressed with the depth of knowledge in this list serve. Since aluminum rivets have a bad reputation for marine use, I only considered 10-24 screws or stainless steel rivets. I've never heard of monel rivets before, but they would seem to be an excellent choice if they don't have significant galvanic interaction with aluminum. Anyway, in my case the 10-24 screws won out because I'd rather be flogged by a cat-o'-ninetails then ever have to drill out a stainless fastener again. CAUTION: Sea Story follows... (Actually a biker story.) Last year I had to remove a motorcycle disk brake fastened with s/s torx head screws and a dab of blue LocTite. It took quite a bit of effort but they all came out - except the last one (of course), which I managed to strip the Torx teeth. After unsuccessfully using every drill and screw extraction gadget imaginable, I finally gave up and decided to go to the pros. Two machine shops told me that the extraction was beyond the capability of their equipment. I finally located a high-tech shop that manufactured parts for M1 Abrams tanks. They used some sort of laser or plasma thing that burned through the center of the threaded screw without damaging the threads of the motorcycle hub. It was pretty amazing. Thanks Again Folks, Jim Poulakis M-17 "Spirit" On Nov 14, 2008, at 6:28 PM, Joe Murphy wrote:
rivetsinstock.com is one place. Joe Seafrog M-17 ----- Original Message ----- From: <larrypegg@aol.com> To: <montgomery_boats@mailman.xmission.com> Sent: Friday, November 14, 2008 7:52 PM Subject: Re: M_Boats: Loctite Blue on the boom
Where do you get such wonderful stuff??
At your service
Larry Pegg
208 249 0538
-----Original Message----- From: Joe Murphy <seagray@embarqmail.com> To: For and about Montgomery Sailboats <montgomery_boats@mailman.xmission.com> Sent: Fri, 14 Nov 2008 1:19 pm Subject: Re: M_Boats: Loctite Blue on the boom
Another alternative is to use monel rivets. Monel is tops for marine use. Monel is probably the best metal that can be chosen for use in the marine industry. This alloy ranks fairly high on the Galvanic Scale and is comprised of two-thirds nickel and one-third copper. It possesses high tensile strength (slightly less than 300 series stainless steels), is very ductile, and it is highly resistant to corrosion from atmospheric and sea water exposure. One of monel's best qualities is that it is most corrosion resistant in moving sea water. There are a variety of parts that are comprised of monel for marine use such as annular-threaded nails, screws, nuts, bolts, props, prop shafts, even wire rope. Monel can pit if it is exposed to long-term stagnant salt water, but very, very rarely. One indication that monel is beginning to corrode is when a grayish-green patina forms on the metal's surface. However, as stated before, it is a rare occasion to see corrosion develop on monel. I use it for all my seizing wire applications as well. Joe Seafrog M-17
----- Original Message ----- From: "Blake Reimer" <blkreimer@yahoo.com> To: <montgomery_boats@mailman.xmission.com> Sent: Friday, November 14, 2008 12:20 PM Subject: Re: M_Boats: Loctite Blue on the boom
Myself, I am a big fan of STAINLESS STEEL pop rivets - the regular aluminum ones are prone to failure due to oxidation - especially in salt water. Stainless is a little harder to install (and drill out!) but very tenacious. Make sure you size the length of the rivet properly so that the shank of the "nail" extends about 1/4" beyond the back side of the boom thickness. If you are using a cheap, lightweight rivet gun, you risk breaking a handle, so be careful.
Blake Reimer M-15 IOTA _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
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