| FASTENER LENGTH | 4.500 INCHES NOMINAL |
| HEAD DIAMETER | 1.312 INCHES NOMINAL |
| HEAD HEIGHT | 0.312 INCHES NOMINAL |
| HEAD STYLE | BUTTON |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP M1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1022 OR STEEL COMP 1212 OR STEEL COMP 1213 OR STEEL COMP 1137 OVERALL |
| MINIMUM TENSILE STRENGTH | 48000 POUNDS PER SQUARE INCH |
| NECK LENGTH | 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM |
| NECK WIDTH | 0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| NONDEFINITIVE SPEC/STD DATA | C2 TYPE |
| SPECIAL FEATURES | W/SQ NUT |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.500 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 11 |
| THREAD SERIES DESIGNATOR | UNC |