Check the listing for details. M6 Finish Countersunk Washer, 50pcs 16mmx3.5mm Cup Washer Screw Gasket. Condition: New. Listed at 20.72 USD. The countersunk washer is a versatile and durable fastener that can be used in a variety of applications, including automotive, construction, plumbing, electrical applications, and industrial settings. It can be used to fasten metal, wood, plastic, and other materials, and is good for applications where a flush finish is desired.Specifications:Color: SilverMaterial: 304 Stainless SteelInner Diameter: 6mm / 0.24 inchFit for Screw or Bolt Size: M10Outer Diameter: 16mm / 0.63 inchHeight: 3.5mm / 0.14 inchPacking List: 50 Pack x Countersunk WasherAdvantage:The countersunk washer is a fastener that provides a flush finish and a professional look. Made of 304 stainless steel, it is corrosion resistant and wear resistant, making it good for use in harsh environments.