| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.926 INCHES MINIMUM AND 0.955 INCHES MAXIMUM |
| HEAD DIAMETER | 0.442 INCHES NOMINAL |
| HEAD HEIGHT | 0.106 INCHES NOMINAL |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | TORQUE SET |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, MACHINE, FLAT 100 DEGREE HEAD |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS6382 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR AMS6415 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR AMS6484 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR AMS6325 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OR AMS6327 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| SCREW MATERIAL | STEEL COMP 414 OR STEEL COMP 4340 OR STEEL COMP 8740 |
| THREAD LENGTH | 0.316 INCHES NOMINAL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |