| FLANGE THICKNESS | 2.750 INCHES NOMINAL |
| FLANGE WIDTH ACROSS FLATS | 1.125 INCHES NOMINAL |
| LENGTH | 3.375 INCHES NOMINAL |
| MATERIAL | STEEL STANDOFF |
| NOMINAL THREAD SIZE | 0.500 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| NOMINAL THREAD SIZE | 0.500 INCHES RIGHT EXTERNAL |
| STYLE DESIGNATOR | FLANGED WITH LEFT INTERNAL THREAD |
| THREAD CLASS | 3A RIGHT EXTERNAL |
| THREAD CLASS | 3B LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD DIRECTION | RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.625 INCHES NOMINAL RIGHT EXTERNAL |
| THREAD LENGTH | 0.688 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL |
| THREAD QUANTITY PER INCH | 13 LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD QUANTITY PER INCH | 13 RIGHT EXTERNAL |