Flatscreen H unislide, available in black. Essential part. SMS flatscreen H unislide is essential link between your heavy screen and bracket. The universal slide fits most screens up to 50kg. SMS flatscreen H unislide is as cleverly designed as it is easy to use, its perfect fit whether you want to hang your screen horizontally or vertically. The universal slide is easy to mount and can be effortlessly removed and attached to most of our other brackets and brackets for heavier screens.