| BEARING SURFACE TYPE | CHAMFERED |
| HARDNESS RATING | NOT RATED |
| LOCKING FEATURE | FREE-RUNNING ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS S1 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR BS S112 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR BS S113 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT HEIGHT | 0.251 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.440 INCHES MINIMUM AND 0.445 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DEF-STAN 03-19 MIL STD ALL TREATMENT RESPONSES |
| SURFACE TREATMENT | CADMIUM AND CHROMATE |
| TEMP RATING | 200.0 DEG CELSIUS NOMINAL |
| THREAD CLASS | FREE |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 26 |
| THREAD SERIES | BSF |