| CRITICALITY CODE JUSTIFICATION | ZZZY |
| FASTENER LENGTH | 1.496 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
| HEAD DIAMETER | 0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM |
| HEAD HEIGHT | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD STYLE | FLAT FILLISTER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-DTL-1222 MIL STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | NICKEL ALLOY 500 OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,CAP,SOCKET - HEAD, MIL-DTL-1222, TYPE II, GRADE 500 |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | QUALITY ASSURANCE TESTED FOR SUBMARINE ANTENNA APPLICATION |
| WIDTH ACROSS FLATS | 0.3125 INCHES MINIMUM AND 0.3160 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.815 INCHES MINIMUM AND 1.125 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 16 |
| THREAD SERIES DESIGNATOR | UNC |