Specification Brand : N. Fasteners BulletPoint1 : Product Included: 4 x Hex Coupling Nut; Hex-Shaped on the outsides, a wrench can tighten or loosen it easily BulletPoint2 : Dimension: Pitch: 1.5 mm; Hex Width: 17 mm / 0.67"; Length: 45 mm /1.77" ;Color: silver BulletPoint3 : Material: Coupling nut are made of 304 Stainless Steel, good rust resistance and durable. BulletPoint4 : Application: Metric coupling nuts are designed to secure 2 parts together, most commonly threaded rod BulletPoint5 : Installation: Easy to install, needs to be tightened with a wrench so that the two parts of fasteners or fittings are joined together. Make sure to properly tighten (don't over-tighten) the hex nuts so they don't come off. Color : silver DriveSystem : 外六角 ExteriorFinish : Stainless Steel ExternallyAssignedProductIdentifier1 : 749273240071 ExternallyAssignedProductIdentifier2 : 0749273240071 FinishType : Polished GradeRating : commercial ItemName : 1/4"-20 Zinc Plated Acoustical Eye Rod Couplings (Pack of 12) ItemPackageDimensions_Height : 12.192 centimeters ItemPackageDimensions_Length : 2.0066 centimeters ItemPackageDimensions_Width : 9.1948 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : coupling-nuts Manufacturer : N. Fasteners Material : metal MeasurementSystem : Metric MetalType : Stainless Steel ModelNumber : M10X45 NumberOfItems : 12 NumberOfPieces : 4 PartNumber : NOVNFCE44DZ ProductDescription : 1/4"-20 Zinc Plated Acoustical Eye Rod Couplings (Pack of 12) ProductSiteLaunchDate : 2012-12-10T18:58:37.413Z SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 31160000