| DIAMETER OF RECESSED PORTION OF SHANK | 0.229 INCHES MINIMUM AND 0.232 INCHES MAXIMUM |
| LENGTH OF RECESSED PORTION OF SHANK | 0.270 INCHES MINIMUM AND 0.280 INCHES MAXIMUM |
| OVERALL LENGTH | 1.646 INCHES MINIMUM AND 1.656 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 8740 OR STEEL COMP 4140 OR STEEL COMP 4340 |
| NOMINAL THREAD SIZE | 0.312 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.312 INCHES STUD THREAD |
| SPECIAL FEATURES | SHANK UNTHREADED PORTION 0.312 IN DIA |
| STYLE DESIGNATOR | RECESSED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 2A STUD THREAD |
| THREAD CLASS | 3A NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.567 INCHES MINIMUM AND 0.587 INCHES MAXIMUM STUD THREAD |
| THREAD LENGTH | 0.595 INCHES MINIMUM AND 0.615 INCHES MAXIMUM NUT THREAD |
| THREAD QUANTITY PER INCH | 18 STUD THREAD |
| THREAD QUANTITY PER INCH | 24 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNS STUD THREAD |