| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| CROSS-SECTIONAL SHAPE | HEXAGON |
| WIDTH ACROSS FLATS | 0.375 INCHES NOMINAL |
| STYLE DESIGNATOR | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| LENGTH | 3.25 INCHES NOMINAL |
| RIGHT PROJECTION DIAMETER | 0.164 INCHES NOMINAL |
| RIGHT PROJECTION LENGTH | 0.375 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNC LEFT INTERNAL (INCLUDES THRU THREAD) |
| UNC RIGHT EXTERNAL |
| NOMINAL THREAD SIZE | 0.164 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.164 INCHES RIGHT EXTERNAL |
| THREAD QUANTITY PER INCH | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| 32 RIGHT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.4375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| 0.375 INCHES NOMINAL RIGHT EXTERNAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | HEX MALE-FEMALE STANDOFFS |