16 gauge, 304 Series stainless Steel | 18/8 Chrome and nickel Content | Diagonal grooves to channel water on drain | 74717 PKG OF 4 WASHERS^The item is used for Hardware, Fasteners & Hooks^This product manufactured in Taiwan | 74717 PKG OF 4 WASHERS^The item is used for Hardware, Fasteners & Hooks^This product manufactured in Taiwan