Specification Brand : Procraft BulletPoint : 12 Pack 5/16-24 Fine Thread x 7/8" long, 7/16" across the flats steel coupling nut with zinc finish. BulletPoint1 : 4 Pack 7/16-14(coarse thread) x 1-3/4" long, 5/8" across flats steel coupling nut with zinc finish. BulletPoint2 : 7/16-14(coarse thread) x 1-3/4" long, 5/8" across flats steel coupling nut BulletPoint3 : with zinc finish. BulletPoint4 : [Easy to Install] Coupling nuts are easy to install and only need to be tightened with a wrench to assemble and connect two parts and be careful not to over-tighten. BulletPoint5 : [Wide Application] Coupling nuts can be widely used in furniture repair, office equipment, automobile, mechanical industry, communication equipment, etc. Color : Silver DriveSystem : External Hex ExteriorFinish : Zinc,Steel ExternallyAssignedProductIdentifier1 : 0023632271112 ExternallyAssignedProductIdentifier2 : 023632271112 FinishType : Zinc Plated GradeRating : commercial ItemName : 12 Pack 5/16-24 X 7/8" Long Fine Thread Hex Coupling Nut with Zinc Plate ItemPackageDimensions_Height : 0.59 inches ItemPackageDimensions_Length : 3.54 inches ItemPackageDimensions_Width : 2.36 inches ItemPackageQuantity : 1 ItemTypeKeyword : coupling-nuts Manufacturer : Procraft Material : Steel MeasurementSystem : Inch MetalType : Alloy Steel NumberOfItems : 1 NumberOfPieces : 12 PartNumber : NCUP005F014STLZN007 ProductDescription : 12 Pack 5/16-24 Fine Thread x 7/8" long, 7/16" across the flats steel coupling nut with zinc finish. ProductSiteLaunchDate : 2018-12-31T08:00:00.000Z Size : Other SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 31161700