#6-7 x 5/16" Round Head Grade 18-8 Stainless Steel U-Drive Drive Screw / FASTENER LENGTH: 0.312 INCHES NOMINAL HEAD STYLE: C37 ROUND HEAD DIAMETER: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM HEAD HEIGHT: 0.091 INCHES MINIMUM AND 0.103 INCHES MAXIMUM PILOT DIAMETER: 0.112 INCHES MINIMUM AND 0.116 INCHES MAXIMUM PILOT LENGTH: 0.047 INCHES NOMINAL END ITEM IDENTIFICATION: 4930-01-547-6265 NONMACHINE THREAD STYLE: A16 DRIVE SCREW (TYPE U) NONMACHINE NOMINAL THREAD DIAMETER: 0.140 INCHES PART NAME ASSIGNED BY CONTROLLING AGENCY: ROUND HEAD U DRIVE SCREW MATERIAL: STEEL COMP 302 OVERALL