Specification Brand : Small Parts BulletPoint : Sold on Amazon BulletPoint1 : Thread rolling screw recommended for use in metal BulletPoint2 : Steel is often used in applications where strength is the primary consideration BulletPoint3 : Zinc plating resists corrosion and has a reflective appearance BulletPoint4 : Hex washer head has a nonserrated flange for additional grip with the mating surface and has six flat sides that a wrench can grip to turn from the side BulletPoint5 : Star drive has a six-pointed indentation that provides a large contact area for the driver, resisting slippage better than a Phillips or slotted drive Color : zinc DriveSystem : External Hex ExteriorFinish : Zinc ExternallyAssignedProductIdentifier1 : 0885612117588 ExternallyAssignedProductIdentifier2 : 885612117588 ItemDisplayDimensions_Length : 5 inches ItemName : Steel Thread Rolling Screw for Metal, Zinc Plated, Hex Washer Head, Metric, M3-0.5 Thread Size, 16 mm Length (Pack of 100) ItemPackageDimensions_Height : 1.524 centimeters ItemPackageDimensions_Length : 10.922 centimeters ItemPackageDimensions_Width : 7.874 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : thread-forming-and-cutting-screws Manufacturer : Small Parts Material : Steel MeasurementSystem : Metric MetalType : Alloy Steel MetalType1 : Zinc MetalType2 : Alloy Steel ModelNumber : M316D7500D NumberOfItems : 100 PartNumber : M316D7500D ProductDescription : Screw, Thread FormingScrew, Thread Forming ProductSiteLaunchDate : 2013-11-01T08:00:01.000Z Size : M3-0.5 SupplierDeclaredDgHzRegulation : unknown UnitCount : 100 UnspscCode : 31161500