The M2.5-45 x 10W6.5 JIS B1188 Phil Pan 304SS Split Washer 302/304SS Flat Washer Sems A2 Stainless is a high-quality washer that is designed to meet the demands of a variety of applications. It is made from durable stainless steel and is resistant to corrosion and wear. The washer has a split design that allows it to be easily installed and removed, and it is also self-locking, which helps to prevent it from loosening over time. This washer is ideal for use in a variety of applications, including automotive, marine, and industrial.