FRUIL. SOLID CUP WASHER 8MM *25*5 Y/P

A cup washer is a dished or recessed washer designed to provide a neat, supportive seat for screw heads. Its cupped shape allows the screw head to sit below the surrounding surface level, improving appearance while distributing load over a larger area. Cup washers are commonly paired with countersunk or raised countersunk screws to create a finished, secure fastening.