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  • Users: ZaraSailor
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  1. ZaraSailor

    Why do bolts work loose?

    I'm keen to understand how dynamic loads cause bolts to unwind. Is it more to do with shock and vibration than dynamic loading? Feel free to leave your opinion on locking nuts, Nord-Lock washers and nylon locking patches etc below too. Thanks very much
  2. ZaraSailor

    Torx, pentalobular, 2 hole, button head, hexagon - which is the best security head screw?

    Hi, I need a screw that is resistant to tampering, but easy and quick to change with the correct tooling. Which is the best one and why are there so many screw drives? Thanks, Zara

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