On Mar 2, 11:54*am, -MIKE- wrote:
On 3/2/10 1:13 PM, whit3rd wrote:

[ screws into plywood edges]
If you have to, prep the plywood by boring a transverse hole, blind if
you want one side to show, and cement in a chunk of dowel.

Threaded insert, maybe.

There are metal 'cylinder nuts' that will go in a bored hole and hold
a transverse machine screw. Is that what you're thinking of?

The cylinder nut solution is sometimes used in bedframes.