Check the listing for details. 60 Pcs 6# Countersunk Finish Washers Stainless Steel Cup Washer, Black. Condition: New. Listed at 11.81 USD. What is this?These stainless steel cup washers are versatile and durable fasteners that are widely used in the mechanical industry, furniture repair, outdoor construction, appliance repair, plumbing, electrical applications, automotive and marine industries, etc. Can be used to fasten metal, plastic, wood, or other materials.What will I get?Material: 304 Stainless SteelInner diameter: 4mm/0.16 inch;Outer diameter: 11mm/0.43 inch;Thickness: 2.5mm/0.1 inch;Color: Black;Package Content: 60 Pcs x Countersunk WasherAre there any advantages of the product?This countersunk washer is made of 304 stainless steel material, which is corrosion-resistant, durable and has good wear resistance, and is available in a full range of specifications. It has good anti-rust and anti-oxidation properties to ensure long-term indoor and outdoor applications.