| THREAD SERIES DESIGNATOR | UNJC |
| NOMINAL THREAD DIAMETER | 0.0860 INCHES |
| THREAD QUANTITY PER INCH | 56 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.281 INCHES MINIMUM AND |
| 0.312 INCHES MAXIMUM |
| FASTENER LENGTH | 0.281 INCHES MINIMUM AND |
| 0.312 INCHES MAXIMUM |
| MATERIAL | PLASTIC NYLON LOCKING FEATURE |
| IRON ALLOY 660 FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-DTL-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE |
| A286 PER AMS5731,5732,5737 OR AMS5853 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| SURFACE TREATMENT | ALUMINUM FASTENER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS4006 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE FASTENER |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | PAN |
| HEAD DIAMETER | 0.155 INCHES MINIMUM AND |
| 0.167 INCHES MAXIMUM |
| HEAD HEIGHT | 0.053 INCHES MINIMUM AND |
| 0.062 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| LOCKING FEATURE | PATCH THREADS |
| SPECIFICATION/STANDARD DATA | 80205-NAS1190 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,SELF-LOCKING,PAN HEAD,FULL THREAD,CRUCIFORM AND OFFSET CRUCIFORM RECESS |