How to Fix a Cross Threaded or Stripped Hole in Aluminum

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Paso 1

Determine which hole has the cross threaded or stripped screws.
Determine the size of the current thread. Threads are called out by the outer diameter, a dash, and then the thread count. For example, the tap shown is 1/4"-20".
The hole's outer diameter can be determined by measuring the width of the screw or bolt that goes into the hole.
The thread count can be determined by counting the number of threads in one inch of screw length.
Select the appropriate tap size.
Taps are sharp. Do not handle the teeth.
Install the tap into the tap handle (See photo).

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