Specification Brand : Small Parts BulletPoint : Sold on Amazon BulletPoint1 : Thread rolling screw recommended for use in plastic BulletPoint2 : Steel is often used in applications where strength is the primary consideration BulletPoint3 : Zinc plating resists corrosion and has a reflective appearance BulletPoint4 : Flat head has an 82-degree cone-shaped bearing surface for use in countersunk holes and a flat top that fits flush with the mated surface BulletPoint5 : Phillips drive has an x-shaped slot that accepts a Phillips driver and is designed to prevent over-tightening Color : zinc DriveSystem : Phillips ExteriorFinish : Zinc ExternallyAssignedProductIdentifier1 : 0885612117588 ExternallyAssignedProductIdentifier2 : 885612117588 ItemDisplayDimensions_Length : 5 inches ItemName : Small Parts-0405 Steel Thread Rolling Screw for Plastic, Zinc Plated, 82 Degree Flat Head, Phillips Drive, #4-20 Thread Size, 5/16" Length (Pack of 100) ItemPackageDimensions_Height : 1.27 centimeters ItemPackageDimensions_Length : 9.906 centimeters ItemPackageDimensions_Width : 8.636 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : thread-forming-and-cutting-screws Manufacturer : Small Parts Material : Steel MeasurementSystem : Imperial MetalType : Plastic Steel,Zinc,Plastic,Steel MetalType1 : Zinc MetalType2 : Alloy Steel ModelNumber : 0405LPF NumberOfItems : 100 PackageLevel : unit PartNumber : 0405LPF ProductDescription : Screw, Thread FormingScrew, Thread Forming ProductSiteLaunchDate : 2013-11-01T00:00:01-07:00 Size : #4-20 SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 100 UnspscCode : 31161500