COMPLETE SCREW SET: This versatile kit includes all 4 screws, split lock washers and extra large flat washers needed to mount your TV. The 4 Nylon spacers add installation options and space for cables, providing more flexibility during TV mounting CORRECT SIZE: The length and thread of the screws / bolts are designed to be compatible with securely mounting a Samsung UN50RU7100. The included spacers provide additional length configurations. However, it's important to consult your manual prior to purchase to ensure the correct length for your specific equipment. SAFE INSTALLATION: Flat washers and split lock washers provide the right amount of grip. The split lock washers exert pressure against the mounting surface and screw, preventing them from backing out or becoming loose over time due to vibrations. VESA COMPATIBLE: These metric screws are compatible with the industry standard M8 VESA mounting bracket pattern. The set includes all the screws and washers for a safe, secure and fully VESA compatible installation. BLACK OXIDE PLATING: These screws are black oxide plated, which not only makes them resistant to corrosion but also gives them a sleek, modern appearance. It matches the color of many TV and mount components, creating a professional appearance. A complete set of replacement screws for mounting your Samsung UN50RU7100 to the wall. One set of metric screws, four screws in total. Four black machine screws with washers and spacers.