Looks like the long standing exercise for apprentice boilermakers in the Qld. technical education system, and for non-boilies taking welding certificate courses. The screw thread used to be made in small batches by the college machine shops as a capstan/turret lathe exercise.



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I was told I could source my own Threaded Rod with a Squarish type of thread from places like Witworths but couldn't be stuffed searching so I used theirs. The Vice still operates okay and is good enough for a Farm shed where it's not getting heavy use out of.
I shouldn't have posted 

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