| MATERIAL | ALUMINUM ALLOY 2024 OVERALL | 
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6 TEMP T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | 
| SURFACE TREATMENT | OXIDE FILM OVERALL | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | 
| CROSS-SECTIONAL SHAPE | HEXAGON | 
| WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL | 
| STYLE DESIGNATOR | LEFT INTERNAL AND RIGHT INTERNAL THREADS | 
| LENGTH | 1.999 INCHES MINIMUM AND | 
|  | 2.001 INCHES MAXIMUM | 
| THREAD SERIES DESIGNATOR | UNC LEFT INTERNAL (INCLUDES THRU THREAD) | 
|  | UNC RIGHT INTERNAL | 
| NOMINAL THREAD SIZE | 0.164 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) | 
|  | 0.164 INCHES RIGHT INTERNAL | 
| THREAD QUANTITY PER INCH | 32 LEFT INTERNAL (INCLUDES THRU THREAD) | 
|  | 32 RIGHT INTERNAL | 
| THREAD CLASS | 3B LEFT INTERNAL (INCLUDES THRU THREAD) | 
|  | 3B RIGHT INTERNAL | 
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) | 
|  | RIGHT-HAND RIGHT INTERNAL | 
| THREAD LENGTH | 0.500 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) | 
|  | 0.500 INCHES NOMINAL RIGHT INTERNAL | 
| SPECIAL FEATURES | REQUESTED NAME - NUT, SPACER |