| FASTENER LENGTH | 0.430 INCHES MINIMUM AND 0.436 INCHES MAXIMUM |
| HARDNESS RATING | 58.5 ROCKWELL A MINIMUM AND 65.5 ROCKWELL A MAXIMUM OVERALL |
| HEAD HEIGHT | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| HOLE CONFIGURATION STYLE | ROUND LONGITUDINAL HOLE |
| HOLE DIAMETER | 0.071 INCHES NOMINAL |
| HOLE QUANTITY | 1 |
| HOLE TYPE | DRILLED |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5636 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.438 INCHES |
| POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
| POINT DIAMETER | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM |
| POINT LENGTH | 0.110 INCHES MINIMUM AND 0.146 INCHES MAXIMUM |
| POINT STYLE | FLAT |
| WIDTH BETWEEN FLATS | 0.616 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.290 INCHES MINIMUM AND 0.320 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNF |