These are sold 100 per box: cast iron fence finials. They have a square hole
in the bottom to fit over 1/2" x 1/2" square tubing or solid stock.
The square hole in the bottom is larger than 1/2", it is designed to
fit loosely over 1/2" square material. 4-1/4" H X 2" W X 1/2" SQ ID.
They can be welded or attached with a two part epoxy from any hardware
store. They are bare cast iron and can be primed and painted with any
metal primer or spray paint or even left to rust.
3 Sizes To Choose From 260-1/2SQ HT. 4-5/8" $149.99 (100) 260-5/8SQ HT. 4-5/8" $159.99 (100) 260-3/4SQ HT. 4-5/8" $169.99 (100)