| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 1.438 INCHES NOMINAL |
| MATERIAL | STEEL SPRING |
| STEEL STAND-OFF |
| IRON ALLOY 660 FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OR |
| ASTM A313 ASSN STD SINGLE MATERIAL RESPONSE SPRING |
| AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE OR |
| ASTM A484 ASSN STD SINGLE MATERIAL RESPONSE OR |
| ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE STAND-OFF |
| AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | HEXAGON |
| HEAD HEIGHT | 0.750 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.309 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |