"Puckdropper" wrote in message

The problem with T-nuts is that they've got a tendency to come out if
you're moving something quite often. Not a problem for the typical work
bench, but for something like an N-trak module, it's definately
something to be aware of.

Thinking about it, I'd also guess that any type of standard bolt and nut
combination would cause the head to the bolt to gouge whatever type of floor
that the bench is sitting on, especially so with a really heavy bench. Guess
there's nothing to match a really level floor.