I just ordered 5 of them from Merlin for about $4 each I think. I didn't even think about the color....

I guess I will have to see what comes in the mail. The dowel idea is a good one.

Also, I have been thinking about an alternative to these made from large thumb screws with rubber ends (I'd have to post a photo). Basically, just tack weld a few bolts of the appropriate size to that metal bracket that houses the female part of the screw, and then use an appropriate thumbscrew to match. The only tricky part would be finding a piece to hold the screws in there once they are loosened....

Bart