Specification Brand : Agri-Fab BulletPoint1 : Made in United States BulletPoint2 : Authentic Agri-Fab Parts BulletPoint3 : Consult your user manual for parts blow-out diagram BulletPoint4 : Made in United States BulletPoint5 : Supplied in a bag Color : silver DriveSystem : External Hex DriveSystem1 : External Hex DriveSystem2 : Cross ExteriorFinish : Nylon ExternallyAssignedProductIdentifier1 : 5028485030553 ExternallyAssignedProductIdentifier2 : 05028485030553 FinishType : Brass,Nickel Plated GradeRating : Grade 5 ItemDisplayWeight : 0.06 pounds ItemName : Agri-Fab 47810 Nut, Hex 5/16-18 Nyloc ItemPackageDimensions_Height : 0.508 centimeters ItemPackageDimensions_Length : 12.7 centimeters ItemPackageDimensions_Width : 7.62 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hex-nuts Manufacturer : Agri-Fab - Replacement Parts Material : Steel MeasurementSystem : Metric MetalType : Aluminum MetalType1 : Stainless Steel MetalType2 : Nickel MetalType3 : Brass ModelNumber : 47810 NumberOfItems : 1 NumberOfPieces : 25 PackageLevel : unit PartNumber : 47810 ProductDescription : A Nylon Insert Jam Lock Nut is a low profile lock nut used for fastening to a bolt when mechanically joining materials together. Jam nuts are typically half the height of a standard hex nut. The nylon insert located at the top of the nut prevent loosening from vibration. 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. ProductSiteLaunchDate : 2011-11-27T23:10:04.469Z Size : Onesize Style : Cap Nut SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 31161700