Specification Brand : Small Parts BulletPoint1 : Thread rolling screw recommended for use in metal BulletPoint2 : 18-8 stainless steel provides good corrosion resistance and strength BulletPoint3 : Passivated finish enhances the natural corrosion resistance of stainless steel BulletPoint4 : Pan head has a flat top and short vertical sides with a rounded top edge 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 : Passivated GradeRating : 18-8 ItemName : Small Parts 0405RPP188 18-8 Stainless Steel Thread Rolling Screw for Metal, Passivated Finish, Pan Head, Phillips Drive, #4-40 Thread Size, 5/16" Length (Pack of 100) ItemPackageDimensions_Height : 12.5 centimeters ItemPackageDimensions_Length : 0.8 centimeters ItemPackageDimensions_Width : 12.1 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : thread-forming-and-cutting-screws Manufacturer : Small Parts Material : Stainless Steel MeasurementSystem : Imperial MetalType : Stainless Steel MetalType1 : Zinc MetalType2 : Alloy Steel ModelNumber : 0405RPP188 NumberOfItems : 100 PartNumber : 0405RPP188 ProductSiteLaunchDate : 2013-11-01T08:00:01.000Z Size : #4-40 UnitCount : 100 UnspscCode : 31161500