The screws are made of stainless steel, strong and durable, which are sturdy and durable, and has a long service life. Wide range of applications: Suitable for fixed bathroom sinks, wall-mounted basins, suitable for a variety of brands and models Easy to use: The durable DIY solution saves time and effort, quick installation and simple operation The size of the injection basin screw is M8*110mm. The sturdy wall-mounted washbasin fixture is designed for solid and hollow wall basin installation. You will receive: 4 screws 110mm length, M8 Diameter + 4 Plugs + 4 M8 Nuts + 4 M8 Washers + 4 White Washer Sleeves, Manufacturer: The Lord of the Tools