| FASTENER LENGTH | 0.535 INCHES MINIMUM AND 0.555 INCHES MAXIMUM |
| HEAD HEIGHT | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SPECIAL FEATURES | 2 HOLES 0.047 IN. TO 0.053 IN. DIA 90 DEGREES A PART DRILLED APPROX. 0.190 IN. FROM END OF POINT |
| POINT CHAMFER ANGLE | 120.0 DEGREES NOMINAL |
| POINT DIAMETER | 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM |
| POINT LENGTH | 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM |
| POINT STYLE | FLAT |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 1A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.385 INCHES MINIMUM AND 0.395 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 28 |
| WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |