1/4"-20 x 3/4" Phillips Drive Round Head Grade 18-8 Stainless Steel Machine Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 0.750 INCHES NOMINAL FASTENER LENGTH: 0.833 INCHES MINIMUM AND 0.845 INCHES MAXIMUM HEAD STYLE: A23 PAN HEAD DIAMETER: 0.217 INCHES MINIMUM AND 0.236 INCHES MAXIMUM HEAD HEIGHT: 0.083 INCHES MINIMUM AND 0.095 INCHES MAXIMUM INTERNAL DRIVE STYLE: B2 CROSS RECESS TYPE II END ITEM IDENTIFICATION: F-15SA NOMINAL THREAD DIAMETER: 0.250 INCHES THREAD QUANTITY PER INCH: 20 PART NAME ASSIGNED BY CONTROLLING AGENCY: STAINLESS STEEL MACHINE SCREW SCREW MATERIAL: STEEL COMP 302 THREAD SERIES DESIGNATOR: UNC