| HARDNESS RATING | 90.0 ROCKWELL B NOMINAL |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A581 FED SPEC SINGLE MATERIAL RESPONSE OR STM A582 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| NOMINAL THREAD SIZE | 0.375 INCHES |
| NUT DIAMETER | 0.545 INCHES MINIMUM AND 0.575 INCHES MAXIMUM |
| NUT HEIGHT | 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM |
| NUT STYLE | CLINCH |
| PILOT DIAMETER | 0.494 INCHES MINIMUM AND 0.499 INCHES MAXIMUM |
| PILOT LENGTH | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| TEMP RATING | 450.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 16 |
| THREAD SERIES | UNJC |