"PC" wrote in message
...
Has anyone used these? How did they perform? They don't look like they
exert much force.

Phil

I would not suggest them if I didn't like them. They don't offer much in
the way of force, but they hold things in place and properly aligned. The OP
said he was going to screw the pieces together. They are perfect for that.
Sort of like having another arm or two.
Ed