| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| MATERIAL | UNABLE TO DECODE |
| PRECIOUS MATERIAL AND LOCATION | PLATED FINISH SILVER |
| PRECIOUS MATERIAL | SILVER |
| NOMINAL THREAD SIZE | 0.3125 INCHES |
| NUT STYLE | HEXAGON |
| OVERALL HEIGHT | 0.251 INCHES MINIMUM AND 0.266 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS-21043 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | UNABLE TO DECODE |
| SURFACE TREATMENT | UNABLE TO DECODE |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| WASHER OUTSIDE DIAMETER | 0.520 INCHES MAXIMUM |
| WASHER THICKNESS | 0.023 INCHES MINIMUM |
| WIDTH ACROSS FLATS | 0.367 INCHES MINIMUM AND 0.378 INCHES MAXIMUM |