| OVERALL LENGTH | 2.610 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-T-570,CLASS S1 FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.500 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.500 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.498 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 0.390 INCHES MINIMUM AND 0.420 INCHES MAXIMUM |
| SHOULDER DIAMETER | 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.092 INCHES NOMINAL |
| STUD END SHANK DIAMETER | 0.498 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE FINISH | 125.0 MICROINCHES OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD LENGTH | 0.690 INCHES MAXIMUM STUD THREAD |
| THREAD LENGTH | 0.760 INCHES MINIMUM AND 0.790 INCHES MAXIMUM NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |
| THREAD QUANTITY PER INCH | 20 NUT THREAD |
| THREAD QUANTITY PER INCH | 20 STUD THREAD |