| DISTANCE ACROSS FLATS | 0.562 INCHES NOMINAL |
| OVERALL LENGTH | 3.980 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626,COND C4 MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 4140 |
| NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| NUT END SHANK DIAMETER | 0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| NUT END SHANK LENGTH | 2.470 INCHES MINIMUM AND 2.500 INCHES MAXIMUM |
| SHOULDER LENGTH | 0.183 INCHES MINIMUM AND 0.187 INCHES MAXIMUM |
| STUD END SHANK DIAMETER | 0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| STUD END SHANK LENGTH | 0.253 INCHES MINIMUM AND 0.257 INCHES MAXIMUM |
| STYLE DESIGNATOR | SHOULDERED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM 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 | 0.520 INCHES MINIMUM AND 0.550 INCHES MAXIMUM NUT THREAD |
| THREAD LENGTH | 0.520 INCHES NOMINAL STUD THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| THREAD QUANTITY PER INCH | 24 STUD THREAD |