| FASTENER LENGTH | 6.000 INCHES NOMINAL |
| FEATURES PROVIDED | SQUARE NUT |
| HEAD DIAMETER | 1.313 INCHES NOMINAL |
| HEAD HEIGHT | 0.313 INCHES NOMINAL |
| HEAD STYLE | BUTTON |
| MATERIAL DOCUMENT AND CLASSIFICATION | FF-B-571 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 48000 POUNDS PER SQUARE INCH |
| NECK LENGTH | 0.375 INCHES MINIMUM AND 0.437 INCHES MAXIMUM |
| NECK WIDTH | 0.608 INCHES MINIMUM AND 0.642 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| NONDEFINITIVE SPEC/STD DATA | C2 TYPE |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.500 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 11 |
| THREAD SERIES DESIGNATOR | UNC |