| DISTANCE ACROSS FLATS | 0.945 INCHES NOMINAL |
| OVERALL LENGTH | 5.969 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4140 |
| NOMINAL THREAD SIZE | 0.625 INCHES NUT THREAD0.625 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.7445 INCHES MINIMUM AND 0.7475 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 1.375 INCHES NOMINAL |
| SPECIAL FEATURES | 160000-180000 PSI |
| SHOULDER LENGTH | 0.093 INCHES NOMINAL |
| STUD END SHANK DIAMETER | 0.7445 INCHES MINIMUM AND 0.7475 INCHES MAXIMUM |
| STUD END SHANK LENGTH | 2.219 INCHES NOMINAL |
| SURFACE FINISH | 32.0 MICROINCHES SHANK32.0 MICROINCHES SHOULDER BEARING SURFACE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A NUT THREAD3A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREADRIGHT-HAND STUD THREAD |
| THREAD LENGTH | 1.250 INCHES NOMINAL NUT THREAD1.125 INCHES NOMINAL STUD THREAD |
| THREAD QUANTITY PER INCH | 18 NUT THREAD18 STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREADUNF STUD THREAD |