| FASTENER LENGTH | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| HEAD DIAMETER | 0.473 INCHES MINIMUM AND 0.492 INCHES MAXIMUM |
| HEAD HEIGHT | 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, SELF LOCKING-PAN HEAD FULL THREAD |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SCREW SURFACE TREATMENT | CADMIUM |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| SPECIAL FEATURES | DASH "K" EQUALS KEL-F WITH OPTIONAL LOCKING ELEMENT |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.469 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |