George the MC ones are slightly magnetic, and there are some rust stains around the snap. Like I said I have not experienced a failure so far, but then I do rinse them off after a dive and lube them regularly. All all my diving is in salt water so I have to take extra precautions against corrosion problems. Jim Sender: kirvine@sa*.ne* Date: 7/4/99 10:23 AM >I went back and checked my snaps with a magnet. The $13 giant snaps will >not pick up the tiny magnet. The $8 ones do. The tiny ones from >Brownies, like for backup lights and long hoses, have no magnetism at >all. By the way, I was testing snaps that I have in a collection that >are not on my gear. The ones on my gear are very old and I got them from >a yacht suplly store which is no longer in business, and they were >unable to order the ones I wanted as of about seven years ago. I try >every one I see trying to find the best ones. So far some are from >Brownies, some from a hardware store in Lauderdale by the Sea. > >I always check the stuff out of habit due ot the scooter building. I >frequently get bullshit stainless snuck in on me, and just take it back >for replacement. Washers are a big one for this type of corner-cutting. > >It is funny how the smallest detail of dive gear can make or break your >fun. > >To test this stuff otherwise I hang it off the dock on a line for a few >days. The bottom line is that the more the snap attracts money and the >less it attracts magnets the better it is at not rusting. Springs are >the same. > >houdini@gr*.xt*.ne* wrote: >> >> Scott Landon wrote: >> > >> > unfortuneately, there are quite a few grades of stainless. and as you can >> > guess, some grades cost more than others. i am by no means a metallurgist, >> > but i have installed my share of piping in corrosive service in a chemical >> > plant. a 316 grade would be ideal. >> > >> > scott >> > >> > >From: Mike Rodriguez <mikey@ma*.co*> >> > >To: Art Greenberg <artg@ec*.ne*> >> > >CC: Cavers <cavers@cavers.com>, Techdiver <techdiver@aq*.co*> >> > >Subject: Re: Stainless Steel Bolt Snaps >> > >Date: Sat, 03 Jul 1999 19:09:25 -0400 >> > > >> > >At 08:08 AM 7/3/99 -0400, Art Greenberg wrote: >> > > >> > > >I've just replaced another large SS bolt snap on my rig. This one was on >> > > >my primary reel, and I had just replaced that one a week ago! >> > > >> > >I replaced all my brass snaps a few months ago with SS snaps >> > >from Extreme Exposure. I don't know where they get them, but >> > >they're the best I've ever seen. They're expensive, but so >> > >far none has shown the slightest trace of corrosion and they >> > >operate very smoothly. I tried some cheap SS snaps from a >> > >local hardware store and regretted it; now I'll only use the >> > >ones from EE. >> > > >> > >Take a look at: >> > > >> > >http://www.extreme-exposure.com/accessories.shtml >> > > >> > >The small ones seem to be good for just about every application. >> > > >> > >-Mike Rodriguez >> > ><mikey@ma*.co*> >> .....what Scott said, many different grades of stainless. Lower numbers >> usually are tougher, higher numbers are usually more resistant to >> corrosion. What George said about being magnetic is a good indicator. If >> it's magnetic - it's NOT a good grade of stainless. True 304 or 316 >> stainless isn't magnetic. (I have found alot of Japaneese stainless is >> magnetic). >> > > >> > >> > _______________________________________________________________ >> > Get Free Email and Do More On The Web. Visit http://www.msn.com > > >-- >Send mail for the `techdiver' mailing list to `techdiver@aq*.co*'. >Send subscribe/unsubscribe requests to `techdiver-request@aq*.co*'. > ------------------------------------------------------------------- Learn About Trimix at http://www.cisatlantic.com/trimix/trimix.html
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