| FASTENER LENGTH | 1.235 INCHES MINIMUM AND 1.265 INCHES MAXIMUM |
| GRIP LENGTH | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM |
| HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | NAS 621 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | TITANIUM ALLOY |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2403A ASSN STD 1ST TREATMENT RESPONSE AND QQ-P-416 TYPE II FED SPEC 2ND TREATMENT RESPONSE |
| SURFACE TREATMENT | NICKEL AND CADMIUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNF |