| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.625 INCHES |
| THREAD QUANTITY PER INCH | 11 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.25 INCHES NOMINAL |
| FASTENER LENGTH | 1.50 INCHES NOMINAL |
| MATERIAL | STEEL OR |
| PLASTIC OR |
| STEEL CORROSION RESISTING LOCKING FEATURE |
| NICKEL ALLOY 500 FASTENER |
| MATERIAL DOCUMENT AND CLASSIFICATION | CL 1 ELEMENT ALLOY STEEL PER MIL-F-8961 MIL SPEC 1ST MATERIAL RESPONSE OR |
| CL 1 ELEMENT HIGH TEMP PLASTIC PER MIL-F-8961 MIL SPEC 2ND MATERIAL RESPONSE OR |
| CL 2 ELEMENT CORROSION AND HEAT RESISTANT STEEL PER MIL-F-8961 MIL SPEC 3RD MATERIAL RESPONSE LOCKING FEATURE |
| NI 500 QQ-N-286 PER ASTM F468 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND |
| 35.0 ROCKWELL C MAXIMUM FASTENER |
| MINIMUM TENSILE STRENGTH | 130000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 90000 POUNDS PER SQUARE INCH |
| HEAD STYLE | FLAT FILLISTER |
| HEAD DIAMETER | 0.921 INCHES MINIMUM AND |
| 0.938 INCHES MAXIMUM |
| HEAD HEIGHT | 0.616 INCHES MINIMUM AND |
| 0.625 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 0.500 INCHES NOMINAL |
| LOCKING FEATURE | SELF-LOCKING LOCKING FEATURE |
| SPECIAL FEATURES | LOCKING ELEMENT IS A SELF-LOCKING,ONE PIECE PREVAILING TORQUE TYPE ELEMENT;DIMENSIONS IAW B18.3 PER SPEC MIL-DTL-1222;SEE SPECIFICATION FOR ADDITIONAL INFORMATION |
| SPECIFICATION/STANDARD DATA | 81349-MIL-DTL-1222 GOVERNMENT SPECIFICATION |
| NONDEFINITIVE SPEC/STD DATA | S STYLE AND |
| N FINISH AND |
| 10AND24 SIZE AND |
| CAND3 CLASS AND |
| NC GRADE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SOCKET HEAD CAP SCREW |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-DTL-1222 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | M1222SN10C324NCLN |