#8-32 x 1/4" Phillips Drive Oval Head Zinc Finish Steel Machine Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 0.250 INCHES NOMINAL HEAD STYLE: A22 OVAL INTERNAL DRIVE STYLE: B2 CROSS RECESS TYPE II NOMINAL THREAD DIAMETER: 0.164 INCHES THREAD QUANTITY PER INCH: 32 PART NAME ASSIGNED BY CONTROLLING AGENCY: SCREW OVAL HEAD SCREW MATERIAL: STEEL SCREW SURFACE TREATMENT: ZINC THREAD SERIES DESIGNATOR: UNC