| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |
| CROSS-SECTIONAL SHAPE | HEXAGON |
| WIDTH ACROSS FLATS | 0.5 INCHES NOMINAL |
| STYLE DESIGNATOR | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| LENGTH | 1.25 INCHES NOMINAL |
| RIGHT PROJECTION DIAMETER | 0.25 INCHES NOMINAL |
| RIGHT PROJECTION LENGTH | 0.5 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNC LEFT INTERNAL (INCLUDES THRU THREAD) |
| UNC RIGHT EXTERNAL |
| NOMINAL THREAD SIZE | 0.25 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.25 INCHES RIGHT EXTERNAL |
| THREAD QUANTITY PER INCH | 20 LEFT INTERNAL (INCLUDES THRU THREAD) |
| 20 RIGHT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.625 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.5 INCHES NOMINAL RIGHT EXTERNAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | HEX MALE-FEMALE STANDOFF |