M4 x 18W9 JIS B1188 Phil Pan Split Washer Flat Washer Sems M/S Zinc
The M4 x 18W9 JIS B1188 Phil Pan Split Washer Flat Washer Sems M/S Zinc is a type of washer that is used to distribute the load of a screw or bolt. It is made of zinc-plated steel and has a split washer design that helps to prevent the screw or bolt from loosening. The washer has a diameter of 4mm and a thickness of 1.8mm. It is designed to be used with screws or bolts that have a diameter of 4mm.