The M3 x 14W7 JIS B1188 Phil Pan Split Washer Flat Washer Sems M/S Zinc Yellow is a type of fastener that is used to secure two or more pieces of material together. It is made of steel and has a zinc yellow finish. The washer has a split design that allows it to be easily installed and removed. The pan head design provides a large bearing surface that helps to distribute the load and prevent damage to the material. The washer is also corrosion resistant, making it suitable for use in a variety of applications.