Specification Brand : uxcell BulletPoint1 : [SIZE]: Width Measured From Flat to Flat 10mm / 0.39"; Height 6mm / 0.24". BulletPoint2 : [MATERIAL]: Made of 304 stainless steel, rust resistance and durable to use. BulletPoint3 : [FEATURE]: With a nylon insert, these lock nuts greatly reduce loosening under vibrations and torque. BulletPoint4 : [ADVANTAGE]: These nuts are great to have around for use in wood and wet environments. They are strong, corrosion resistant and will support all of your projects. BulletPoint5 : [APPLICATION]: Can be widely used in automobile, construction machinery, shipbuilding and etc. Color : Silver Tone DriveSystem : External Hex ExteriorFinish : Stainless Steel FinishType : Plain Finish GpsrSafetyAttestation : 1 GradeRating : commercial ItemName : uxcell M6 x 1mm Nylon Insert Hex Lock Nuts, 304 Stainless Steel, Plain Finish, Pack of 50 ItemPackageDimensions_Height : 13.5 centimeters ItemPackageDimensions_Length : 1.6 centimeters ItemPackageDimensions_Width : 9.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : hardware-locknuts Manufacturer : uxcell Material : Stainless Steel MeasurementSystem1 : Metric MeasurementSystem2 : Inch MetalType : Stainless Steel MetalType1 : Zinc MetalType2 : Bronze ModelNumber : a18111300ux0040 NumberOfItems : 30 NumberOfPieces : 5 PartNumber : a18111300ux0040 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 major diameter of the screw. 4.The insert deforms elastically over the threads of the screw, but threads are not cut into the nylon.