| BOTTOM COUNTERSINK DIAMETER | 0.118 INCHES MAXIMUM |
| HEAD DIAMETER | 0.449 INCHES MINIMUM |
| HEAD LENGTH | 0.449 INCHES MINIMUM |
| HEAD STYLE | FLUSH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, TENSION, MACHINE, FLAT |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | NAS1154 NATIONAL SPEC SINGLE MATERIAL RESPONSE |
| SCREW MATERIAL | TITANIUM |
| SCREW SURFACE TREATMENT | ALUMINUM |
| SHANK SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS1154 NATIONAL SPEC SINGLE TREATMENT RESPONSE |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |