| OVERALL LENGTH | 2.870 INCHES MINIMUM AND 2.890 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4130 |
| NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| SHOULDER LENGTH | 0.156 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| SPECIAL FEATURES | NUT END GROOVE 0.090 IN. RADIUS AND 0.309 IN. MIN AND 0.312 IN. MAX DIA,STUD END GROOVE 0.237 IN. MIN AND 0.247 IN. MAX DIA |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE FINISH | 63.0 MICROINCHES OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 3 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND PHOSPHATE OVERALL |
| THREAD CLASS | 3A NUT THREAD |
| THREAD CLASS | 3A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.500 INCHES MINIMUM NUT THREAD |
| THREAD LENGTH | 0.500 INCHES MINIMUM STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| THREAD QUANTITY PER INCH | 24 STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |