| DEPARTURE FROM CITED DOCUMENT | AS MODIFIED BY LG OF NECK AND SPECIAL FEATURES |
| FASTENER LENGTH | 4.000 INCHES NOMINAL |
| HEAD DIAMETER | 1.063 INCHES NOMINAL |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| HEAD STYLE | BUTTON |
| MATERIAL | STEEL OVERALL |
| NECK LENGTH | 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| NECK WIDTH | 0.492 INCHES MINIMUM AND 0.515 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| NONDEFINITIVE SPEC/STD DATA | 1 TYPE AND 1 CLASS AND A STYLE |
| SPECIAL FEATURES | W/ONE SQ NUT |
| SURFACE TREATMENT | CADMIUM OR ZINC AND CHROMATE OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.250 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 13 |