| FASTENER LENGTH | 1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM |
| FEATURES PROVIDED | CASEHARDENED |
| HEAD HEIGHT | 0.361 INCHES MINIMUM AND 0.389 INCHES MAXIMUM |
| HEAD STYLE | SQUARE |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 1010 OR STEEL COMP 1020 OVERALL |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| POINT STYLE | OVAL |
| WIDTH BETWEEN FLATS | 0.484 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.065 INCHES MINIMUM AND 1.281 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 13 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |