Specification Brand : Sscon BulletPoint1 : Package Content:20Pcs K-Lock Nuts.Size:4#-40. BulletPoint2 : Made of carbon steel with galvanized surface anti-rust and durable. BulletPoint3 : The external tooth lock washer rotates freely and help lock the nut into place according to the installation situation. BulletPoint4 : It is used for the maintenance and installation of various items such as furniture machinery vehicles etc. BulletPoint5 : Application: The anti-loose nylon nut is an excellent substitute for industrial and construction fasteners. It can also be used as an important accessory in your daily life. It is widely used in various harsh occasions such as electronic product maintenance or DIY. Color : Silver DriveSystem : External Hex ExteriorFinish : Zinc ExternallyAssignedProductIdentifier : 9398269453783 FinishType : Zinc Plated GradeRating : 2 ItemName : Sscon 20Pcs Carbon Steel Cap Nuts Silver K Lock Nuts K Nuts with External Tooth Washer 4#-40 ItemPackageDimensions_Height : 0.8 centimeters ItemPackageDimensions_Length : 4 centimeters ItemPackageDimensions_Width : 3 centimeters ItemPackageQuantity : 20 ItemTypeKeyword : hardware-locknuts Manufacturer : Sscon Material : Carbon Steel MeasurementSystem : Inch MetalType : no-metal-type NumberOfItems : 20 PartNumber : CW2307240062 ProductDescription : Main Features 1.Made of carbon steel with galvanized surface anti-rust and durable. 2.The external tooth lock washer rotates freely and help lock the nut into place according to the installation situation. 3.It is used for the maintenance and installation of various items such as furniture machinery vehicles etc. Product Specifications Product Name:K-Lock Nut. Material:Carbon Steel. Color:Silver. Size:4#-40. Package Content:20Pcs K-Lock Nuts.