| DIAMETER OF RECESSED PORTION OF SHANK | 0.188 INCHES MINIMUM AND 0.190 INCHES MAXIMUM |
| DISTANCE ACROSS FLATS | 0.290 INCHES MAXIMUM |
| LENGTH OF RECESSED PORTION OF SHANK | 0.250 INCHES NOMINAL |
| OVERALL LENGTH | 1.120 INCHES MINIMUM AND 1.140 INCHES MAXIMUM |
| MATERIAL | STEEL |
| NOMINAL THREAD SIZE | 0.138 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.190 INCHES STUD THREAD |
| STYLE DESIGNATOR | RECESSED AND STEPPED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 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 | 0.370 INCHES NOMINAL NUT THREAD |
| THREAD LENGTH | 0.435 INCHES MINIMUM STUD THREAD |
| THREAD QUANTITY PER INCH | 32 NUT THREAD |
| THREAD QUANTITY PER INCH | 32 STUD THREAD |
| THREAD SERIES DESIGNATOR | UNF STUD THREAD |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) NUT THREAD |