| FASTENER LENGTH | 2.443 INCHES MINIMUM AND 2.473 INCHES MAXIMUM |
| GRIP DIAMETER | 1.2471 INCHES MINIMUM AND 1.2482 INCHES MAXIMUM |
| GRIP LENGTH | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM |
| HEAD HEIGHT | 0.625 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 1.250 INCHES |
| SPECIFICATION/STANDARD DATA | 80205-NAS6720 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.646 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 12 |
| WIDTH BETWEEN FLATS | 1.801 INCHES MINIMUM AND 1.814 INCHES MAXIMUM |