| CHAMFER ANGLE | 30.0 DEGREES MINIMUM AND 45.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.00 INCHES NOMINAL |
| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM FASTENER |
| 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 CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| LOCKING FEATURE | SELF-LOCKING LOCKING FEATURE |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A574,S1 HARDENED AND TEMPERED AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE FASTENER |
| MATERIAL | STEEL FASTENER |
| MINIMUM TENSILE STRENGTH | 180000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 155000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.375 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SOCKET HEAD CAP SCREW |
| SPECIAL FEATURES | LOCKING ELEMENT IN ACCORDANCE WITH MIL-F-8961 OR MIL-DTL-18240 |
| SPECIFICATION/STANDARD DATA | 81349-MIL-DTL-1222J GOVERNMENT SPECIFICATION |
| WIDTH ACROSS FLATS | 0.312 INCHES NOMINAL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.00 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNF |