J.W. Winco 6341-NI-5-16-B-MT GN6341-NI Washer with Bore for Countersunk Screw, 5 mm Bore, 16 mm OD, 3 mm Thickness, Stainless Steel Go to amazon.com Related posts Top countersunk washer stainless Feature5 mm ID16 mm OD3 mm ThicknessWasher body: Stainless steel, European Standard No. 1.4305 (American Standard Series 303), matte shot-blast finish DescriptionGN 6341-NI washers are used mainly in mechanical machine and jig construction when DIN 125, DIN 9021 and DIN 6340 washer do not meet requirements.