Mounted apart from the support beams hardly what, but that depends on the application. The clamp bracket make any case a very solid impression, my new blinds (Ikea Lindmon 80 * 155cm, you need a pair of clamp bracket for installing such blind) depend now rock solid at the window without that I had to drill into the frame - that I could namely not ,
That the delivered terminal carrier be slightly different from the product image does not interfere with the function is the same. Dealer "bag Bude" sent (in this case on Ebay) very fast, I did not have to wait long for the terminal carrier. Overall, highly recommended!