| FLANGE THICKNESS | 1.625 INCHES NOMINAL |
| FLANGE WIDTH ACROSS FLATS | 0.250 INCHES NOMINAL |
| LENGTH | 1.938 INCHES NOMINAL |
| NOMINAL THREAD SIZE | 0.138 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) |
| NOMINAL THREAD SIZE | 0.164 INCHES RIGHT EXTERNAL |
| SPECIAL FEATURES | UNDERCUT 0.123 IN. DIA BY 0.062 IN. WIDE BETWEEN NUT END AND HEX SHOULDER |
| STYLE DESIGNATOR | FLANGED WITH LEFT INTERNAL THREAD |
| SURFACE TREATMENT | ZINC OR NICKEL AND CHROMATE STANDOFF |
| THREAD LENGTH | 0.250 INCHES NOMINAL RIGHT EXTERNAL |
| THREAD CLASS | 2A RIGHT EXTERNAL |
| THREAD CLASS | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD DIRECTION | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD DIRECTION | RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.375 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD QUANTITY PER INCH | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD QUANTITY PER INCH | 32 RIGHT EXTERNAL |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL |