| COUNTERBORE DIAMETER | 0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.138 INCHES |
| NUT COUNTERBORE DEPTH | 0.090 INCHES MINIMUM AND 0.120 INCHES MAXIMUM NUT |
| NUT HEIGHT | 0.249 INCHES MINIMUM AND 0.276 INCHES MAXIMUM |
| NUT STYLE | CLINCH |
| PILOT DIAMETER | 0.220 INCHES MINIMUM AND 0.224 INCHES MAXIMUM |
| PILOT LENGTH | 0.099 INCHES MINIMUM AND 0.111 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 76301-ST3-405 MANUFACTURERS STANDARD |
| WIDTH ACROSS FLATS | 0.303 INCHES MINIMUM AND 0.315 INCHES MAXIMUM |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| TEMP RATING | 450.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNJC |
| THREAD QUANTITY PER INCH | 32 |