| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 8740 OR |
| STEEL COMP 4130 OR |
| STEEL COMP E4340 OVERALL |
| NUT STYLE | HEXAGON |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| BEARING SURFACE TYPE | CHAMFERED OR |
| WASHER FACED |
| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3B |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR |
| AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR |
| AMS 6350 FED SPEC 2ND MATERIAL RESPONSE OR |
| AMS 6378 FED SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-18729 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-5000 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND |
| 41.0 ROCKWELL C MAXIMUM |
| NUT HEIGHT | 0.328 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.741 INCHES MINIMUM AND |
| 0.752 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 120.0 DEGREES NOMINAL NUT |
| LUBRICATION | DRY FILM LUBRICANT |
| TEMP RATING | 450.0 DEG FAHRENHEIT NOMINAL |