Specification Brand : Micron Group Label : Micron Group Manufacturer : Micron Group MaterialType : Iron MetalType : Iron Model : IG PackageDimensions : 3 PartNumber : IG ProductGroup : BISS Basic ProductTypeName : WASHERS Publisher : Micron Group SmallImage_Height : 60 SmallImage_URL : https://m.media-amazon.com/images/I/41p9APJFBUL._SL75_.jpg SmallImage_Width : 75 Studio : Micron Group Title : Micron Iron Nickel Self-Piercing Grommets & Washers, 500 Pcs Set Per Bag (#3 (7/16"))