The M4-0.7 x 10W9 JIS B1188 Phil Pan 304SS Split Washer 302/304SS Flat Washer Sems A2 Stainless is a high-quality washer set designed to provide a secure and reliable connection in various applications. The split washer is made from durable 304 stainless steel, offering excellent corrosion resistance and strength. The flat washer is made from 302/304 stainless steel, providing additional support and preventing damage to the mating surfaces. The washers are designed to work together to distribute the load evenly and prevent loosening due to vibr