Package Contents: 4 Sink Basket Hollow Screws, Silver, Universal Thread, Kitchen Sink Accessories. Material: The drain strainer screw is made of stainless steel with fine workmanship, rust resistance and corrosion resistant, strong and durable. Dimensions: total screw length: 45mm; screw diameter: 12mm; screw head diameter: 15mm; M12 thread, please confirm the size before ordering. Easy to install: The hollow screw adopts a slotted design, which can be screwed and fixed with a coin, which is easy to install. Strong practicality: suitable for most kitchen sink strainers and sink strainer caps, widely used in kitchen, dining room, dining room and other places . Note: The data is all manual measurement, please allow 1 - 3cm error, due to the difference in light and display, there will be a certain color difference, depending the physical object received Delivery Quantity: (according to the main image)