Champion Flat Washers 4mm SKU: 225753 MODEL: BSS076 Error. try again later You've successfully joined the club $ 6 .40 pack of 35 Available on orders $50 to $1500. More info × Mitre 10 MAvailable at Mitre 10 MEGA stores. Variants Marine grade 316 stainless steel. Features and benefits Suits all 4mm diameters.