| FASTENER LENGTH | 1.3460 INCHES MINIMUM AND 1.3760 INCHES MAXIMUM |
| GRIP LENGTH | 0.750 INCHES NOMINAL |
| HEAD HEIGHT | 0.2808 INCHES MINIMUM AND 0.2300 INCHES MAXIMUM |
| HEAD STYLE | DISHED HEXAGON |
| INTERNAL DRIVE STYLE | TORX |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, CAPTIVE, HEX HEAD, 180 KSI |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.3125 INCHES |
| SPLINE MAJOR DIAMETER | 0.2210 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.4890 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-H-6875 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.5660 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNJF |