Specification Brand : Shorpioen BulletPoint1 : Designed for use with square bolts BulletPoint2 : Nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements--Carbon: 0.55% maximum; Phosphorus: 0.12% maximum; Sulfur: 0.23% maximum. BulletPoint3 : Rockwell B68 - C32 DriveSystem : Square ExteriorFinish : Zinc,Carbon Steel FinishType : Black Oxide ItemName : 1-8 Regular Square Nut Zinc (Pack Qty 50) BC-100NQR by Shorpioen ItemPackageQuantity : 50 ItemTypeKeyword : square-nuts Manufacturer : Shorpioen LLC Material : Zinc MeasurementSystem : Inch MetalType : Carbon Steel ModelNumber : BC-100NQR NumberOfItems : 50 PartNumber : BC-100NQR 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. Designed for use with square bolts. Nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements--Carbon: 0.55% maximum; Phosphorus: 0.12% maximum; Sulfur: 0.23% maximum. . Rockwell B68 - C32. ProductSiteLaunchDate : 2017-01-04T15:00:37.406Z Size : 2022-01-08 SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable UnspscCode : 31161700