| CHAMFER ANGLE | 30.0 DEGREES MINIMUM AND 45.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 0.625 INCHES NOMINAL |
| HARDNESS RATING | 95.0 ROCKWELL B MAXIMUM FASTENER |
| HEAD DIAMETER | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| LOCKING FEATURE | SELF-LOCKING LOCKING FEATURE |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F593,S5 ANNEALED AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL | STEEL COMP 316 FASTENER |
| MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH |
| MINIMUM TENSILE STRENGTH | 75000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SOCKET HEAD CAP SCREW |
| SPECIAL FEATURES | SELF LOCKING ELEMENT IN ACCORDANCE WITH MIL-F-8961 OR MIL-DTL-18240 |
| WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL |
| SPECIFICATION/STANDARD DATA | 81349-MIL-DTL-1222J GOVERNMENT SPECIFICATION |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.625 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |