How to Fix an All Thread Rod

Written by mike schoonveld
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How to Fix an All Thread Rod
Threading a nut on an all thread rod is essential to its usability. (Photos.com/Photos.com/Getty Images)

All thread rods are handy hardware since they can be used as ultra-long bolts; they also can be used when the correct length of bolt is unknown or can't be determined. They can even be used to make a bolt of a certain length, saving a trip to the store if you don't have the right bolt on hand. In most instances, all thread rods are installed, then the extra length is sawn off with a hacksaw or cut-off tool. The sawed-off pieces can be salvaged and reused for future projects. The ends of the all threads commonly become distorted when being cut off, making it impossible to thread on a new nut. Fixing those bunged-up threads, however, can make the rod usable.

Skill level:
Moderately Easy

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Things you need

  • Bastard file
  • 2 wooden blocks
  • 3 hex nuts
  • Open end wrench
  • Box end wrench
  • Vice

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Instructions

    Plan Ahead

  1. 1

    Position the all thread rod in your project so the excess rod can be accessed and cut off with a hacksaw.

  2. 2

    Tighten the nut holding your all thread rod in its position on your project, but before cutting off the excess rod, thread three additional hex nuts onto the excess rod you plan to cut off and save.

  3. 3

    Cut off the excess rod with the three nuts in place using a hacksaw.

  4. 4

    Thread all three nuts down the scrap of rod just removed until they are all within 4 inches of the cut off end of the scrap piece of all thread.

  5. 5

    Turn the nut farthest from the cut off end until it's against the nut in the middle and then, using an open end and box end wrench, tighten these two nuts against each other, jamming them together securely.

  6. 6

    Put the open end wrench on the jam nuts and the box end wrench on the loose nut and rotate the loose nut towards the cut off end. As it threads off, it will straighten the bunged-up threads at the end of the all thread rod caused by it being sawn off.

  7. 7

    Loosen the jam nuts with the wrenches, remove the nuts and store the scrap end for future use.

    File Method

  1. 1

    Open a large vice, position a block of wood against each jaw of the vice and position a section of all thread rod with a bunged-up end between the pieces of wood so the end to be fixed extends out from the vice 3 inches.

  2. 2

    Tighten the vice securely so the wood blocks are holding the all thread rod without damaging the threads.

  3. 3

    Use a bastard file to remove any burrs or other imperfections at the cut-off end of the all thread.

  4. 4

    Attempt to thread on a nut. If it goes on, you are done. If it doesn't go on, continue filing and straightening the threads until you can get the nut to thread onto the rod.

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