Specification Brand : RAW PRODUCTS CORP BulletPoint1 : Nylon Insert Lock Nuts in Brass BulletPoint2 : Commonly referred to as Nylon Lock Nuts, Nyloc Nuts, or simply Lock Nuts BulletPoint3 : Nylon insert at top of nut prevents accidental loosening from vibration BulletPoint4 : Brass nuts designed for use with brass Bolts & Machine Screws with matching thread sizes BulletPoint5 : Durable Brass construction, commonly used for its look and physical durability Color : Yellow CompatibleFastenerDescription : 0.5 inches DriveSystem : External Hex DriveSystem1 : External Hex DriveSystem2 : Cross ExteriorFinish : Nylon,Brass ExternallyAssignedProductIdentifier1 : 787392590264 ExternallyAssignedProductIdentifier2 : 0787392590264 ExternallyAssignedProductIdentifier3 : 0735533070205 ExternallyAssignedProductIdentifier4 : 0855740005163 ExternallyAssignedProductIdentifier5 : 00855740005163 FinishType : Brass,Nickel GpsrSafetyAttestation : 1 GradeRating : industrial ItemName : Brass Nylon Insert Lock Hex Nut UNC 1/4-20 Solid Brass Nylon Lock Nuts - Qty 25 ItemPackageDimensions_Height : 4 inches ItemPackageDimensions_Length : 4 inches ItemPackageDimensions_Width : 4 inches ItemPackageQuantity : 1 ItemTypeKeyword : hardware-locknuts Manufacturer : RAW PRODUCTS CORP Material : Brass MeasurementSystem : English/Standard MetalType : Stainless Steel MetalType1 : Nickel MetalType2 : Brass ModelNumber : Nylon Insert Lock Nut NumberOfBoxes : 1 NumberOfItems : 20 NumberOfPieces : 25 PartNumber : 1102-092-0004 ProductDescription : A nylon insert lock nut is hex shaped, internally threaded with a nylon insert. The nylon material prevents loosening from vibration and cross threads to stop the nut from backing off of the fastener. The insert deforms elastically over the threads of the screw, but threads are not cut into the nylon. The nylon insert locks the nut in two ways. First, it forces the bottom face of the screw threads against the top face of the nut threads, increasing the friction between the two. Second, the nylon applies a compressive force against the screw itself.WARNING: This product can expose you to chemicals such as nickel, lead or chromium, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov ProductSiteLaunchDate : 2017-05-03T00:00:00.000-07:00 Size : 1/4"-20 Style : with Protective Sleeve SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 31161700