When i were a schoolboy, i made a folding wood work bench . Teach said it would last me a lifetime , old school enthusiastic teacher he was . . After exams , i stayed on a bit , finishing stuff i'd made . Teach, suggested i make i wooden vice for the bench too , thread an' all , as he had the tap and die to suit …
I can't remember what the die was like , or the selected wood for the screw , but it cut beautifully . The clamp bits were beech, if i remember . Now, either the tap was blunt ,or it was rubbish wood , but the internal thread was rough as a badgers …
Any way , once the screw was in,and the vice assembled , you couldn't see it anyway ! It worked fine ,sort of…. with a bit of candle fat … until it got damp in the garage after i'd left school , and i snapped the tommy bar tying to open it ! Threw the whole lot away , good old Black n Decker workmate since