| FASTENER LENGTH | 4.551 INCHES MINIMUM AND 4.581 INCHES MAXIMUM |
| HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.133 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
| HEAD STYLE | FLAT FILLISTER |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,MACHINE,FLAT FILLISTER HEAD,CLOSE TOLERANCE,SHORT THREAD,OFFSET CRICUFORM,160 KSI FTU |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6282 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6415 OR 6484 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6322,6525 OR 6327 ASSN STD 3RD MATERIAL RESPONSE |
| SCREW MATERIAL | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 |
| SPECIFICATION/STANDARD DATA | 80205-NAS1121 THRU 1128 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.316 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |