Specification Brand : Korpek.com BulletPoint1 : For use with A307 Grade A or Grade B bolts BulletPoint2 : Nuts shall be made from a carbon steel which conforms to the following chemical composition requirements Carbon: 0.58% maximum; Phosphorus: 0.13% maximum. Rockwell B68 - C32 BulletPoint3 : Made of carbon steel with zinc-plated surface. BulletPoint4 : Surface flat and smooth, no burr. BulletPoint5 : Used in electronics, lighting, toys, sports and other industries Color : One Color DriveSystem : Square ExteriorFinish : Carbon Steel ExternallyAssignedProductIdentifier : 9088955638371 FinishType : Phosphorus GradeRating : commercial ItemName : 1/2-13 Heavy Square Nut Plain (Pack Qty 300) BC-50NQHP by Korpek ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 300 ItemTypeKeyword : square-nuts Manufacturer : Korpek LLC Material : Plain Material1 : Stainless Steel Material2 : Steel MaximumShearStrength : 1500 lbf MeasurementSystem : Inch MetalType : Carbon Steel MetalType1 : Stainless Steel MetalType2 : Alloy Steel ModelNumber : BC-50NQHP NumberOfItems : 300 NumberOfPieces : 1 PartNumber : BC-50NQHP ProductDescription : PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot. For use with A307 Grade A or Grade B bolts. Nuts shall be made from a carbon steel which conforms to the following chemical composition requirements Carbon: 0.58% maximum; Phosphorus: 0.13% maximum. Rockwell B68 - C32 . Machine Pack Count - Margin error of +/- 5% ProductSiteLaunchDate : 2021-02-08T18:56:50.282Z Size : 2013-01-02 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable UnspscCode : 31161700