| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| OVERALL HEIGHT | 0.268 INCHES MINIMUM AND 0.300 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | M-993,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| NUT STYLE | HEXAGON |
| WASHER OUTSIDE DIAMETER | 0.641 INCHES MINIMUM AND 0.687 INCHES MAXIMUM |
| WASHER THICKNESS | 0.020 INCHES MINIMUM AND 0.050 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | P-17-02,FSCM 11862 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 2B |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNF |