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Am I the only guy with hardware problems?

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  • Am I the only guy with hardware problems?

    Seems that lately(past year) all the problems in my center are due to hareware(nuts/bolts) failure. Is the quality these days that bad? I'm replacing bolts that I just installed a year ago or less. I understand that cushions and bounce plate supports take quite a beating but wow this is getting old fast.
    Anyone else having this problem?

  • #2
    Re: Am I the only guy with hardware problems?

    Fix it
    Are you using a high grade bolt or a low grade. And what kind of locknut it can also play a big part in bolts failing.

    CHUCK.
    CHUCK MCDOWELL

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    • #3
      Re: Am I the only guy with hardware problems?

      hello all,

      Most of the bolts on the AMF pinsetter are
      grade 5.

      I switched to grade 8. No more breakage in
      key areas anymore. Would like to go to a
      higher grade if it is made.

      Recommend the change.

      Doc

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      • #4
        Re: Am I the only guy with hardware problems?

        It's all grade 8 except for the cushion to weldment bolts. Which are unknown Vantage. Super Chuck Explain the the lock nut and bolt failure thing.

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        • #5
          Re: Am I the only guy with hardware problems?

          fix it
          I just ment that using a locknut such as a nylock say on your bounce board brackets tend to come loose alot faster than the flexlocks you may buy from a distributor and if the nut is loose the bolt will have undo presure on it causing it to break sooner.

          Thanks Chuck
          CHUCK MCDOWELL

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          • #6
            Re: Am I the only guy with hardware problems?

            Always use stover lock nuts from AMF, ,nylock will not handle the vibrations of bowling. Nylock means plastic and when a little oil gets in them they will work loose. ALWAYS USE STOVER NUTS!!!

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            • #7
              Re: Am I the only guy with hardware problems?

              You can get stover locknuts from Grainger under the name of "prevailing torque". All the (coarse thread) grade 8 bolts you could ask for are there too.

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