Last year HD(or was that earlier this year??) closed out it's line of the
small Bessematic cabinet clamps. I bought all I could carry as they were
less than half price. Anyway, I made a few clamps that work through the dog
holes of my bench. I ground off the bar stop at the screw end so the end
comes off. The bar is then passed through the bench from underneath and the
screw end is back slid on. Viola! you have a clamping system very similiar
to those "bw" clamps you mentioned.
Don't know if these links are relevant but may be along the same lines:
Google Image search
see http://www.unistrut.com /
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.