Specification Brand : Fastenere BulletPoint1 : Nominal Washer Size #4 (0.112") BulletPoint2 : Inside Diameter Max 0.123" BulletPoint3 : Outside Diameter Max 0.270" BulletPoint4 : Thickness Max 0.018" BulletPoint5 : Type 410 Stainless Steel is the general purpose corrosion and heat resisting chromium stainless steel. It is hardened by thermal treatment to a wide range of mechanical properties. This grade is always Magnetic. Color : Off White ExteriorFinish : Plain ExternallyAssignedProductIdentifier : 9376591965433 ExternallyAssignedProductIdentifier1 : 842176142944 ExternallyAssignedProductIdentifier2 : 0842176142944 ItemName : #4 Internal Tooth Lock Washers, Stainless Steel 410, Plain Finish, Quantity 100 by Fastenere ItemPackageDimensions_Height : 6 inches ItemPackageDimensions_Length : 3 inches ItemPackageDimensions_Width : 1 inches ItemPackageQuantity : 100 ItemTypeKeyword : tooth-lock-washers Manufacturer : Fastenere Material : Stainless Steel MetalType : Stainless Steel ModelName : Genericncx561w97g ModelNumber : Genericncx561w97g NumberOfItems : 100 NumberOfPieces : 100 PackageLevel : unit PartNumber : 3SWLI004 ProductDescription : Internal Tooth Lock Washers are a hardened curcular washer that have twisted prongs called "teeth" which extend inward from the inside edge of the washers. These lock washers are preffered when the finished appearance is crucial and the teeth must be hidden under the head. ProductSiteLaunchDate : 2016-10-21T14:36:52.162Z Size : #4 (100 Pack) UnitCount : 1 UnspscCode : 52140000 WasherType : Internal Tooth Lock