I have two of them, and I've had them for years. They have 4 3/4" threaded rods that support 1.5" thick MDF shelves with some nice brass nuts. Simple, but solid and built like a tank. They are able to support extremely heavy items without problems.
I'm not sure what the retail price of them is/was, though.
Michael
I'm not sure what the retail price of them is/was, though.
Michael