| BEARING SURFACE TYPE | CHAMFERED |
| COUNTERSINK ANGLE | 90.0 DEGREES MINIMUM AND 120.0 DEGREES MAXIMUM |
| HARDNESS RATING | 201.0 BRINELL STANDARD MINIMUM AND 255.0 BRINELL STANDARD MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS S92 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR BS S95 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR BS S96 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR BS S113 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR BS S114 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR BS S117 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| NUT HEIGHT | 0.660 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| SPECIAL FEATURES | 100800 POUNDS FORCE PER SQUARE INCH MIN TENSILE STRENGTH |
| WIDTH ACROSS FLATS | 0.741 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DTD 904 MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | CADMIUM AND CHROMATE |
| TEMP RATING | -75.0 DEG CELSIUS MINIMUM AND 200.0 DEG CELSIUS MAXIMUM |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES | UNF |