| FASTENER LENGTH | 1.00 INCHES NOMINAL |
| HEAD HEIGHT | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM |
| HEAD STYLE | HEXAGON |
| LOCKING FEATURE | MATERIAL IN THREADS LOCKING FEATURE |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281, CLASS A FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL | NICKEL ALLOY 400 FASTENER |
| MINIMUM TENSILE STRENGTH | 80000 POUNDS PER SQUARE INCH |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | HEX HEAD CAP SCREW |
| NOMINAL THREAD DIAMETER | 0.500 INCHES |
| SPECIAL FEATURES | LOCKING FEATURE IAW MIL-F-8961 OR MIL-DTL-18240 |
| SPECIFICATION/STANDARD DATA | 81349-MIL-DTL-1222J GOVERNMENT SPECIFICATION |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.00 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 13 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| WIDTH BETWEEN FLATS | 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |