| MATERIAL | ALUMINUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A225/3-QQA225/8-QQ-A200/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| CROSS-SECTIONAL SHAPE | HEXAGON |
| WIDTH ACROSS FLATS | 0.1875 INCHES NOMINAL |
| STYLE DESIGNATOR | LEFT INTERNAL AND RIGHT INTERNAL THREADS |
| LENGTH | 0.250 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNC LEFT INTERNAL (INCLUDES THRU THREAD) |
| UNC RIGHT INTERNAL |
| NOMINAL THREAD SIZE | 0.0860 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.0860 INCHES RIGHT INTERNAL |
| THREAD QUANTITY PER INCH | 56 LEFT INTERNAL (INCLUDES THRU THREAD) |
| 56 RIGHT INTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| RIGHT-HAND RIGHT INTERNAL |
| SPECIAL FEATURES | FINISH IRIDITE (GOLD) PER MIL-C-5541D |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | 3/16 HEX FEMALE STANDOFF |