Hi, I purchased a Samsung le26r74. Purchased a wall bracket but the 4mm bolts dont fit. After going to the shop, discovered that the fixing holes on the set have been produced with the wrong size holes. This also applied to other Samsung sets. So this is a Samsung wide issue. Am told that the holes are US 8-32 UNC 4.2mm and there is a place in teh UK who stocks. I just ordered some. SO I guess if you have a Samsung, make sure that if you fit 4mm bolts, they tighten up ok.