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  1. #1
    Senior Member
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    Rack bolt, self-extracting.

    My alu framed dahon has rack mounts which are over 1cm deep. Ive had rack bolts work themselves lose and fall out. At first I thought someone had stolen one but the replacements came lose as well.
    The luggage rack is never heavily loadeed, the rack bolts are greased and tightened.
    What is happening and how can I keep them in place?

  2. #2
    Senior Member
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    Use a thread locker.

    Blue Loctite or generic will do the trick

  3. #3
    Call me The Breeze I_bRAD's Avatar
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    2004 Litespeed Siena, 1996 Litespeed Obed, 1992 Miele (unknown model), 1982 Meile Uno LS.
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    locktite or lockwasher

  4. #4
    rebmeM roineS JanMM's Avatar
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    or a longer bolt and a nylon-insert nut on the other end for the overkill approach

  5. #5
    Map maker cbchess's Avatar
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    Quote Originally Posted by janmm View Post
    or a longer bolt and a nylon-insert nut on the other end for the overkill approach
    +1

  6. #6
    cab horn
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    Quote Originally Posted by JanMM View Post
    or a longer bolt and a nylon-insert nut on the other end for the overkill approach
    That's overkill. A lock washer on top of a normal washer and blue loctite will prevent any adequately bolt from removing itself during normal operations. We've been doing this at the shop for years and never had anybody coming back before because the screws backed out .
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  7. #7
    rebmeM roineS JanMM's Avatar
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    Quote Originally Posted by operator View Post
    That's overkill. A lock washer on top of a normal washer and blue loctite will prevent any adequately bolt from removing itself during normal operations. We've been doing this at the shop for years and never had anybody coming back before because the screws backed out .
    Absolutely overkill.

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