| FASTENER LENGTH | 0.59 INCHES MINIMUM AND 0.62 INCHES MAXIMUM |
| HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | CRUCIFORM RIBBED |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, PAN HEAD RIBBED CRUCIFORM RECESS, A286 CRES. FULL THREAD, SELF-LOCKING AND NONLOCKING |
| NOMINAL THREAD DIAMETER | 0.1640 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731, AMS5732, AMS5737 OR AMS5853 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| SCREW MATERIAL | IRON ALLOY 660 |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | NAS4006 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE |
| SCREW SURFACE TREATMENT | ALUMINUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS8100 THRU NAS8106 NATIONAL STD/SPEC |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.59 INCHES MINIMUM AND 0.62 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNJC |