Specification Brand : NIDAYE BulletPoint : 4 Pack 5/16-18 X 1-3/4" Long Hex Coupling Nut with Zinc Plate NCUP005C000STLZN BulletPoint1 : 1.Thread Size: 1/4"-20, round rod coupling nuts for quickly joining two pieces of 1/4" inch threaded rod BulletPoint2 : 2.Widely function:Fully threaded, allowing the two rods to meet in the middle, forming a tight connection BulletPoint3 : 3.Material: Low carbon steel with zinc plated finishing, good for use indoors, in non-corrosie environments BulletPoint4 : 4.Length: 17.8mm BulletPoint5 : 5.Item type: Round coupling nut Color : Silver DriveSystem : External Hex ExteriorFinish : Nickel ExternallyAssignedProductIdentifier1 : 0749273267269 ExternallyAssignedProductIdentifier2 : 749273267269 FinishType : Zinc Plated GpsrSafetyAttestation : 1 GradeRating : industrial ItemName : NIDAYE 20 Packs 1/4"-20 Round Rod Coupling Nuts, UNC Threaded Round Connector Nuts,Length: 17.8mm ItemPackageDimensions_Height : 11.4046 centimeters ItemPackageDimensions_Length : 1.4986 centimeters ItemPackageDimensions_Width : 4.5974 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : coupling-nuts Manufacturer : NIDAYE Material : Low Carbon Steel MaximumShearStrength : 2000 lbf MeasurementSystem : Inch MeasurementSystem1 : Metric MeasurementSystem2 : Inch MetalType : Iron ModelNumber : m8x30 NumberOfItems : 20 NumberOfPieces : 20 PartNumber : N-YLM-1/4-20pcs ProductDescription : Coupling Nuts are Also called couplers and rod couplings, coupling nuts are used for quickly joining two pieces of threaded rod. They are fully threaded, allowing the two rods to meet in the middle, forming a tight connection. Use this Uturn rod and nut coupling for 3/8 threaded rod. They are similar to round nuts with extreme height measurements giving it length. The coupling nut joins two pieces of threaded rod. Diameter: 1/4" Length: 17.8mm Material: Carbon steel Finish: Zinc plated