Specification Brand : AOESIN BulletPoint1 : Thread Size: 1/2"-13; Thread Pitch: 13 TPI BulletPoint2 : Hex Drive Size: 3/4 inch; Package: 20 Pcs BulletPoint3 : Nut Height: 20.07mm (min)-21.08mm (max) BulletPoint4 : The high quality acorn cap nut will protect the thread from being corroded or rusted. With an enclosed dome and partially internally threaded, acorn cap nut typically play a good role in decoration. BulletPoint5 : Material: 304 Stainless Steel 18-8 that you will probably see in your pans and cookery tools. It's used for a wide variety of home and commercial applications. Because of its slightly higher strength and wear resistance than type 316, it's also used for nuts, bolts, screws and other fasteners. DriveSystem : External Hex ExteriorFinish : Stainless Steel GradeRating : commercial ItemName : 1/2-13 (20 Pcs) Acorn Cap Nut, 304 Stainless Steel 18/8, Hex Drive, Hex Dome Head Cap Nut ItemPackageDimensions_Height : 2.5 centimeters ItemPackageDimensions_Length : 11.5 centimeters ItemPackageDimensions_Width : 11.5 centimeters ItemPackageQuantity : 20 ItemTypeKeyword : hex-nuts Manufacturer : AOESIN Material : Stainless Steel 304 MeasurementSystem : Inch MetalType : Stainless Steel ModelNumber : AOE-AM33111-20 NumberOfItems : 20 NumberOfPieces : 20 PartNumber : AOE-AM33111-20 ProductSiteLaunchDate : 2022-11-10T04:01:04.558Z Size : 1/2"-13 SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 0.22 UnspscCode : 31161700