| COUNTERSINK ANGLE | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
| HEAD HEIGHT | 0.048 INCHES MINIMUM AND 0.059 INCHES MAXIMUM |
| HEAD DIAMETER | 0.244 INCHES MINIMUM AND 0.279 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE III |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,MACHINE,82 DEG FLAT COUNTERSUNK HEAD,CRUCIFORM RECESS,CARBON STEEL,CADMIUM PLATED,SELF-LOCKING AND NONLOCKING,UNC-2A |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS-QQ-P-416 OR AMS-C-81562,TY II,CL 3 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | SAE AIR4127 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| SCREW MATERIAL | STEEL |
| SCREW SURFACE TREATMENT | CADMIUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS-35190 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| SPECIAL FEATURES | TENSILE STRENGTH PER LBF IS 545; SELF-LOCKING THREADS |