| FASTENER LENGTH | 0.5340 INCHES MINIMUM AND 0.5640 INCHES MAXIMUM |
| HEAD HEIGHT | 0.0960 INCHES MINIMUM AND 0.1100 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, 160 KSI |
| PROPRIETARY CHARACTERISTICS | PACS |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.1640 INCHES |
| SPLINE MAJOR DIAMETER | 0.1550 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.2430 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.3230 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNJC |