Specification Brand : Hillman BulletPoint1 : The Nylon Insert Lock Nut features an integrated nylon insert that grips bolts to help resist vibration effects. This easy-to-use nut is ideal to securely fasten a bolt when connecting materials. BulletPoint2 : Brand name: Hillman BulletPoint3 : Model number: 180156 BulletPoint4 : Item Weight: 0.75 lb BulletPoint5 : [GREAT REPLACEMENT] - Great replacement for industrial and construction fasteners, also can be an important accessory in your daily life. Color : Silver Tone DriveSystem : External Hex ExteriorFinish : Zinc ExternallyAssignedProductIdentifier1 : 008236072907 ExternallyAssignedProductIdentifier2 : 0008236072907 ExternallyAssignedProductIdentifier3 : 00008236072907 FinishType : Plain Finish GpsrSafetyAttestation : 1 GradeRating : Commercial ItemName : Hillman 180156 7/16-14 Nylon Lock NUT, Pack of 1 ItemPackageDimensions_Height : 18.1 centimeters ItemPackageDimensions_Length : 5.2 centimeters ItemPackageDimensions_Width : 17.9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hardware-locknuts Manufacturer : The Hillman Group Material : Steel MeasurementSystem : Inch MetalType : Stainless Steel MetalType1 : Alloy Steel MetalType2 : Zinc ModelNumber : 180156 NumberOfItems : 1 NumberOfPieces : 1 PackageLevel : unit PartNumber : 180156 ProductDescription : 1. Nylon-insert lock nut, polymer-insert lock nut, or elastic stop nut, is a kind of locknut. 2. It is a nut with a nylon insert that resists turning. 3. The plastic insert is placed at the end of the nut, and its inner diameter (ID) is slightly smaller than the diameter of the screw. 4. The inserts deform elastically over the threads of the screw, but threads are not cut into the nylon.