| COUNTERSINK ANGLE | 45.0 DEGREES NOMINAL |
| HEAD HEIGHT | 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| HEAD STYLE | COUNTERSUNK W/REVERSE CHAMFER |
| HEAD MAJOR DIAMETER | 0.387 INCHES MINIMUM AND 0.412 INCHES MAXIMUM |
| HOLE DEPTH | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
| LUBRICATION | SOLID FILM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP XM-13 OVERALL |
| NOMINAL THREAD SIZE | 0.2500 INCHES |
| SHANK DIAMETER | 0.2696 INCHES MINIMUM AND 0.2701 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, TAPERED, THREADED |
| SHEAR STRENGTH | 115000 SINGLE POUNDS PER SQUARE INCH |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
| TIP DIAMETER | 0.2410 INCHES MINIMUM AND 0.2440 INCHES MAXIMUM |