#8-32 x 1/2" Phillips Drive Flat Head Grade 18-8 Stainless Steel Machine Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 0.500 INCHES NOMINAL HEAD STYLE: A39 FLAT COUNTERSUNK INTERNAL DRIVE STYLE: B1 CROSS RECESS TYPE 1 END ITEM IDENTIFICATION: F-15SA NOMINAL THREAD DIAMETER: 0.164 INCHES THREAD QUANTITY PER INCH: 32 SCREW MATERIAL: STEEL CORROSION RESISTING THREAD SERIES DESIGNATOR: UNC