| FASTENER LENGTH | 0.515 INCHES NOMINAL |
| HEAD DIAMETER | 0.389 INCHES MINIMUM AND 0.414 INCHES MAXIMUM |
| HEAD HEIGHT | 0.161 INCHES MINIMUM AND 0.170 INCHES MAXIMUM |
| HEAD STYLE | FILLISTER |
| HOLE CONFIGURATION STYLE | ROUND |
| HOLE DIAMETER | 0.046 INCHES NOMINAL |
| HOLE TYPE | DRILLED |
| HOLE QUANTITY | 1 |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL |
| MINIMUM TENSILE STRENGTH | 100000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| POINT CHAMFER ANGLE | 30.0 DEGREES NOMINAL |
| POINT DIAMETER | 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM |
| POINT LENGTH | 0.156 INCHES NOMINAL |
| POINT STYLE | FLAT |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.281 INCHES MINIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 20 |