| DISTANCE ACROSS FLATS | 0.185 INCHES MINIMUM AND 0.189 INCHES MAXIMUM |
| OVERALL LENGTH | 0.805 INCHES MINIMUM AND 0.825 INCHES MAXIMUM |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.138 INCHES STUD THREAD |
| SHOULDER LENGTH | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| STYLE DESIGNATOR | SHOULDERED AND STEPPED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A NUT THREAD |
| THREAD CLASS | 2A STUD THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM STUD THREAD |
| THREAD LENGTH | 0.345 INCHES MINIMUM AND 0.355 INCHES MAXIMUM NUT THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) STUD THREAD |
| THREAD QUANTITY PER INCH | 32 STUD THREAD |