Unfinished brass arm back that has4 threaded holes (3/8" diameter) top, bottom, and 2 sides. All holes are threaded 3/8"will accomodate standard 1/8 IPS pipe. These are13/16" high and 9/16" outside diameterWe ship with other items to save freight. We sell for less in lots of 10- see our store.$3.92 each.Shipping is $2.60 plus .14 for each additional piece.Combined shipping- to get cheapest shipping costs (when buying different items)please buy what you need and “request invoice” so we can send invoice with lower shipping costs."How to Request Invoice when using shopping cart"---From your eCRATER cart, near the top of the page, move your mouse curser over our name “lamppartsguy” and a drop down menu will appear with the option to request invoice from seller.
