| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SHEAR STRENGTH | 95000 SINGLE POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.0550 INCHES MINIMUM AND |
| 0.0650 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.3060 INCHES MINIMUM AND |
| 0.3220 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| FASTENER LENGTH | 0.6770 INCHES MINIMUM AND |
| 0.6970 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.0791 INCHES MINIMUM AND |
| 0.0801 INCHES MAXIMUM |
| SHANK DIAMETER | 0.1630 INCHES MINIMUM AND |
| 0.1635 INCHES MAXIMUM |
| GRIP LENGTH | 0.3700 INCHES MINIMUM AND |
| 0.3800 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJC |
| NOMINAL THREAD SIZE | 0.1640 INCHES |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 32 |
| THREAD DIRECTION | RIGHT-HAND |
| LUBRICATION | CETYL ALCOHOL |