Specification Brand : Ruiwaer BulletPoint1 : The product is made of high quality metal material, the surface is black zinc, durable, long service life. BulletPoint2 : Product size: Total size approx.: 12 x 8mm/0.47x0.31in, thread: M4 x 0.7mm. BulletPoint3 : The outer surface of the product has a knurled thumb, which is very easy to manually tighten, but also easy to disassemble, very convenient. BulletPoint4 : The products are suitable for 3D printing beds, machine tools, cabinets and toolboxes. BulletPoint5 : Product package contains: 10 pieces of knurled finger nuts. Color : Black DriveSystem : Spline DriveSystem1 : Spline DriveSystem2 : Thumb ExteriorFinish : Black FinishType : Zinc-plated GradeRating : Industrial ItemName : Ruiwaer 10PCS Black Stainless Steel 304 Knurled Thumb Nut M4 Round Knobs Hand Nuts for 3D Printer Parts ItemPackageDimensions_Height : 1.2 centimeters ItemPackageDimensions_Length : 9 centimeters ItemPackageDimensions_Width : 6 centimeters ItemPackageQuantity : 10 ItemTypeKeyword : thumb-nuts Manufacturer : Ruiwaer Material : Stainless Steel Material1 : Iron Material2 : Stainless Steel MeasurementSystem : Metric MetalType : Stainless Steel NumberOfItems : 10 NumberOfPieces : 10 PartNumber : 52636-SSKHN-10 ProductDescription : Product: Knurled Finger Nuts Material: metal Colour: Black Quantity: 10 pieces ProductSiteLaunchDate : 2024-04-30T01:22:52.296Z Size : M5 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 31161700