| CRITICALITY CODE JUSTIFICATION | FEAT |
| DISTANCE ACROSS FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| OVERALL LENGTH | 2.950 INCHES MINIMUM AND 2.990 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 430 |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.383 INCHES NOMINAL |
| NUT END SHANK LENGTH | 1.222 INCHES MINIMUM AND 1.262 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| SPECIAL FEATURES | CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES ANDMANUFACTURING PROCESS. |
| STYLE DESIGNATOR | SHOULDERED AND STEPPED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2406 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMIUM OVERALL |
| THREAD CLASS | 1A STUD THREAD |
| THREAD CLASS | 1A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.530 INCHES MINIMUM AND 0.570 INCHES MAXIMUM NUT THREAD |
| THREAD LENGTH | 0.673 INCHES MINIMUM AND 0.713 INCHES MAXIMUM STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |
| THREAD QUANTITY PER INCH | 24 STUD THREAD |
| THREAD QUANTITY PER INCH | 28 NUT THREAD |