Specification Brand : uxcell BulletPoint1 : Product Name: Flat Washer; Material: Iron BulletPoint2 : Weight: 34g; Package Content: 300(+/-2%)PCS x Flat Washer BulletPoint3 : Thickness: 0.5mm / 0.02"; Inner Diameter: 3mm / 0.12" BulletPoint4 : Outer Diameter: 7mm / 0.28"; Standard: M3 BulletPoint5 : Color: Black; Coating: Black Zinc Plated Color : Black ExteriorFinish : Zinc ExternallyAssignedProductIdentifier : 7844908501091 ExternallyAssignedProductIdentifier1 : 5055893317006 ExternallyAssignedProductIdentifier2 : 05055893317006 ExternallyAssignedProductIdentifier3 : 00781002301035 GpsrSafetyAttestation : 1 ItemName : uxcell M3 x 7mm x 0.5mm Black Zinc Plated Flat Washers Gaskets Spacers 300PCS ItemPackageDimensions_Height : 12.5984 centimeters ItemPackageDimensions_Length : 1.6002 centimeters ItemPackageDimensions_Width : 9.6012 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : flat-washers Manufacturer : uxcell Material : Iron MetalType : Iron ModelNumber : SYNCTEA036739 NumberOfItems : 75 NumberOfPieces : 300 PackageLevel : unit PartNumber : a16101300ux0695 ProductDescription : Black zinc plated offers corrosion resistance. The flat washer provides a bearing surface for fastener load distribution or is used as a spacer between components. Intended for the general use under the head of a bolt or nut in order to provide a smooth-bearing surface.