Specification Brand : Makita BulletPoint : Makita 224512-1 Lock Nut 5/8-45 BulletPoint1 : Nylon Insert Lock Nuts in Yellow Zinc Plated Grade C (Grade 8 equivalent) Steel 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 : Grade C Steel (Grade 8 Equivalent) designed for use with Grade 8 Bolts & Machine Screws BulletPoint5 : Yellow Zinc plating for easy identification, corrosion resistance and durability Color : Multicolor CustomerPackageType : 1 DriveSystem : External Hex DriveSystem1 : External Hex DriveSystem2 : Cross ExteriorFinish : Black Oxide ExternallyAssignedProductIdentifier : 4524667374114 ExternallyAssignedProductIdentifier1 : 088381104586 ExternallyAssignedProductIdentifier2 : 0088381104586 ExternallyAssignedProductIdentifier3 : 00088381104586 FinishType : Zinc GpsrSafetyAttestation : 1 GradeRating : Grade C ItemDisplayWeight : 0.2 pounds ItemName : LOCKNUT FOR GRINDING WHEEL ItemPackageDimensions_Height : 11.7094 centimeters ItemPackageDimensions_Length : 0.889 centimeters ItemPackageDimensions_Width : 7.112 centimeters ItemPackageQuantity : 1 ItemShape : Triangle ItemTypeKeyword : hardware-locknuts Manufacturer : Makita Material : Plastic MeasurementSystem : English/Standard MetalType : Alloy Steel ModelNumber : 224512-1 NumberOfItems : 1 NumberOfPieces : 25 OeManufacturer : GM OemEquivalentPartNumber : 12511963 PackageLevel : unit PartNumber : 224512-1 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. ProductSiteLaunchDate : 2014-12-14T05:01:50.049Z Size : 7" SkipOffer : 1 Style : Nylon Lock Nut SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 31161700 WarrantyDescription : 12 Months