Anyone using the Atlas 'spintite' and 'maxtite' fasteners in FRP panels?

Discussion in 'Materials' started by bntii, Aug 19, 2008.

  1. bntii
    Joined: Jun 2006
    Posts: 731
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    Location: MD

    bntii Senior Member

    I have a blind installation problem and need to find a threaded insert which will install into a 3/8" frp panel to accept a 5/16"-18 machine screw.
    I have been looking at the 'Atlas' series of threaded inserts manufactured by PennEngineering.

    Anyone tried these?
  2. mongo75
    Joined: Aug 2007
    Posts: 262
    Likes: 6, Points: 0, Legacy Rep: 95
    Location: Orange County California

    mongo75 Senior Member

    In the helos I work on, we use "nutserts" which is basically a floating receptical that we glue into a honeycomb panel for blind fastening. You grind a hole, fill it with thickened epoxy and the nusert, and then tape over it to keep it from falling out while it dries. Unfortunately I don't know where we get them, but hopefully this can help. Also, if you can get behind it anyway, you can get a T nut from either a hardware store or hobby shop. You drill a hole, then put the thing behind the panel, and pull it through with the bolt. It has tiny barbs that keep it in place form spinning. Good luck!
  3. tinhorn
    Joined: Jan 2008
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    Location: Massachusetts South Shore.

    tinhorn Senior Member

    I've used the hardware store T-nuts on non-boat projects. Because the barbs won't puncture the fiberglass, I used a wood backing.

    I've also drilled and tapped the 'glass itself on occassion.

  4. JRL
    Joined: May 2007
    Posts: 83
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    Location: Palm Beach Gardens, FL

    JRL Im with stupid

    We get ours from McMaster-Carr. Type in "Nut Certs" into the search bar and they'll be your only search result.
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