The biggest problem with the nylon screws is that on self locking nuts they get way to tight to keep from breaking the screws. I think they also get to tight even for steel screws and sometimes unflatten them a little in my vise.
I used short steel screws with enough washers behind them so they only went in a few threads and didn't hit the locking part of the nutplates. I put all the nutplates on first then I used a stick to glob on some fairly thick flox just around the tabs and made sure it didn't drip onto the threaded part. Not one of them stuck. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Mike Turner Sent: Monday, October 11, 2004 9:27 PM To: KRnet Subject: Re: KR> Re: Screwed, blued and tattoed !!! Mark I think the nylon screws are still a good idea. I don't think you would have had a problem if you had diped the nylon threads in wax first then they probely would have come out a lot eaiser. Mike Turner ----- Original Message ----- From: Mark Jones<mailto:flyk...@wi.rr.com> To: KR Net<mailto:kr...@mylist.net> ; jscott.pi...@juno.com<mailto:jscott.pi...@juno.com> Sent: Monday, October 11, 2004 7:36 PM Subject: KR> Re: Screwed, blued and tattoed !!! Excellent comments on the self lock crimp on the nut plate. I just finished removing the nylon screws starting with the very smallest bit I had and working my way up to the crimp size. I then used a tap to start the threads till I felt the tap grab the nut plate then I backed off. I then carefully inserted a screw in each nut plate and threaded it in till it started to grab. Everything seems ok now, thank God !!! Learn from others mistakes and save you a lot of grief. I hope someone else will benefit from my mistakes. You can bet I will not try the nylon bolt thing again. Now on to making the counterbalance arm. Mark Jones (N886MJ) Wales, WI USA E-mail me at flyk...@wi.rr.com<mailto:flyk...@wi.rr.com> Visit my KR-2S CorvAIRCRAFT web site at http://mywebpage.netscape.com/n886mj/homepage.html<http://mywebpage.netsca pe.com/n886mj/homepage.html> ----- Original Message ----- From: <jscott.pi...@juno.com<mailto:jscott.pi...@juno.com>> To: <flyk...@wi.rr.com<mailto:flyk...@wi.rr.com>> Sent: Monday, October 11, 2004 7:16 PM Subject: Re: Screwed, blued and tattoed !!! > > Bummer. When I heard about doing it that way I kind of wondered if the nylon screws wouldn't get hung up, but I long ago concluded that experience doesn't mean anything over ideas on the net. You should be able to run through a drill a bit smaller than the crimp on the self locking threads in the nut plate. The only thing left should be some nylon residue that you can be rid of by simply running a screw through the nut plate. > > FWIW, when I did mine I waxed up some regular screws and ran them through the nut plates when I floxed them in place. They threaded out reasonably easily leaving the nut plates ready to use. > > As you probably already know, running a tap all the way through will ruin the self locking capability of the nut plates. If you can't get a screw started after drilling the nylon screws, start a tap into the nut plate, but just run it in deep enough that you can back it out and run a regular screw through the threads. > > Good luck. > > -Jeff > > -- "Mark Jones" <flyk...@wi.rr.com<mailto:flyk...@wi.rr.com>> wrote: > Yesterday, I floxed in place the Aileron mounting spar into the right wing. I was very concerned about the nut plates on the back of the spar filling with flox and being clogged. So, I remembered someone stating they had put nylon screws in the nutplates to prevent this and theirs easily removed after the flox dried. Well....mine did not come out and now my screw holes are plugged with nylon bolts. Guess I will have to carefully drill them out and tap the nut plates to get the threads clean.........anyone know of a better way to get them out??????????????? Man, it is always something. I gotta get bird in the air before I go crazy. > > Mark Jones (N886MJ) > Wales, WI USA > E-mail me at flyk...@wi.rr.com<mailto:flyk...@wi.rr.com> > Visit my KR-2S CorvAIRCRAFT web site at > http://mywebpage.netscape.com/n886mj/homepage.html<http://mywebpage.netscape .com/n886mj/homepage.html> > > > > ________________________________________________________________ > Speed up your surfing with Juno SpeedBand. > Now includes pop-up blocker! > Only $14.95/ month - visit http://www.juno.com/surf<http://www.juno.com/surf> to sign up today! > _______________________________________ to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net<mailto:krnet-le...@mylist.net> please see other KRnet info at http://www.krnet.org/info.html<http://www.krnet.org/info.html> _______________________________________ to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
