| FASTENER LENGTH | 1.813 INCHES NOMINAL |
| GRIP DIAMETER | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
| GRIP LENGTH | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM |
| HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL | STEEL COMP E4340 OR STEEL COMP 8740 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| SPECIAL FEATURES | DRILLED HEAD |
| SPECIFICATION/STANDARD DATA | 80205-NAS6205 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TY2, CL2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.438 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 24 |
| WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |