| DEPARTURE FROM CITED DOCUMENT | ASMODIFIED BY THD CLASS |
| FASTENER LENGTH | 2.626 INCHES MINIMUM AND 2.750 INCHES MAXIMUM |
| HARDNESS RATING | 95.0 ROCKWELL B NOMINAL OVERALL |
| HEAD HEIGHT | 0.418 INCHES MINIMUM AND 0.458 INCHES MAXIMUM |
| HEAD LENGTH | 0.975 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| HEAD STYLE | TEE NO. 1 |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 55000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| NONDEFINITIVE SPEC/STD DATA | 5 TYPE |
| WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.530 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.626 INCHES MINIMUM AND 1.750 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 13 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |