Specification Brand : LUORNG BulletPoint1 : M6 high head knurled nut, overall smooth and bright, strong and tight structure, long service time BulletPoint2 : Material: made of 304 stainless steel. BulletPoint3 : Easy to use: Features a knurled surface that makes it easy to hand tighten, complete assembly or disassembly without any tools. BulletPoint4 : Wide range of applications: commonly found on 3D printer beds, toolboxes, cabinets, machine tools BulletPoint5 : Package content: 4pcs M6 stainless steel high head knurled nuts Color : Bright Black DriveSystem : Spline DriveSystem1 : Spline DriveSystem2 : Thumb ExteriorFinish : Aluminum ExternallyAssignedProductIdentifier1 : 0799360203083 ExternallyAssignedProductIdentifier2 : 799360203083 FinishType : Unfinished GradeRating : commercial ItemName : LUORNG 4PCS High Head Knurled Thumb Nuts M6 20x12mm Through Hole Nut Hand Tightened Coarse Thread Nut Stainless Steel Round Knob Fasteners for 3D Printers Machine Tools Toolboxes and Cabinets ItemPackageDimensions_Height : 1.6 centimeters ItemPackageDimensions_Length : 9 centimeters ItemPackageDimensions_Width : 6 centimeters ItemPackageQuantity : 4 ItemTypeKeyword : thumb-nuts Manufacturer : LUORNG Material : Stainless Steel Material1 : Iron Material2 : Stainless Steel MeasurementSystem : Metric MetalType : Stainless Steel ModelNumber : LN18MM-10 NumberOfItems : 4 NumberOfPieces : 4 PartNumber : 53690-HHKN-4 ProductDescription : Material: stainless steel