| DEPARTURE FROM CITED DESIGNATOR | AS MOD BY THD FORMING METHOD |
| FLUTE QUANTITY | 4 |
| LENGTH | 0.407 INCHES MINIMUM AND 0.469 INCHES MAXIMUM SQUARE END |
| OVERALL LENGTH | 2.407 INCHES MINIMUM AND 2.469 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1 CLASS |
| SHANK DIAMETER | 0.561 INCHES MINIMUM AND 0.563 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.415 INCHES MINIMUM AND 0.421 INCHES MAXIMUM |
| STARTING CHAMFER TYPE | PLUG |
| STYLE DESIGNATOR | STRAIGHT FLUTE |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD FORMING METHOD | CUT |
| THREAD LENGTH | 1.000 INCHES MINIMUM AND 1.062 INCHES MAXIMUM |
| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 0.250-18 NPT |
| THREAD STRUCTURE | REGULAR |