M6 x 12W12.5 JIS B1188 Phil Pan Split Washer Flat Washer Sems M/S Zinc is a type of fastener that is used to secure two pieces of metal together. It consists of a split washer, a flat washer, and a screw. The split washer is placed under the screw head, and the flat washer is placed over the screw head. The screw is then tightened, which causes the split washer to spread out and grip the metal. The flat washer helps to distribute the load of the screw, preventing the metal from being damaged. This type of fastener is often used in automotive an