| DISTANCE ACROSS FLATS | 0.432 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| OVERALL LENGTH | 1.437 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | OMP 17-4PH,WOOWARD GOVERNOR CO MFR REF 2ND MATERIAL RESPONSE |
| MATERIAL | STEEL CORROSION RESISTING |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| NUT END SHANK DIAMETER | 0.183 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 0.125 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.153 INCHES MINIMUM AND 0.159 INCHES MAXIMUM |
| SPECIAL FEATURES | TWO 0.05 IN. DIA HOLES SPACED 60 DEGREES IN SHOULDER |
| STYLE DESIGNATOR | SHOULDERED AND STEPPED |
| THREAD CLASS | 2A STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.406 INCHES NOMINAL STUD THREAD |
| THREAD LENGTH | 0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM NUT THREAD |
| THREAD QUANTITY PER INCH | 28 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) NUT THREAD |