| FASTENER LENGTH | 0.803 INCHES MINIMUM AND 0.813 INCHES MAXIMUM |
| HEAD DIAMETER | 0.291 INCHES MINIMUM AND 0.295 INCHES MAXIMUM |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| HEAD STYLE | FLAT FILLISTER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, FORWARD WING |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SPECIAL FEATURES | ALTERATION OF NAS1351N4-14; APPLY THE FOLLOWING MARKINGS TO EITHER THE CONTAINER OR THE TAG OR BOTH IN ACCORDANCE WITH MIL-STD-130, 15090-2306211-1 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2700 METHOD 1, TYPE 2 OR 8, CLASS 4 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.803 INCHES MINIMUM AND 0.813 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNRF |
| WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |