| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.338 INCHES MINIMUM AND |
| 0.388 INCHES MAXIMUM |
| FASTENER LENGTH | 1.410 INCHES MINIMUM AND |
| 1.440 INCHES MAXIMUM |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND |
| 35.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.339 INCHES MINIMUM AND |
| 0.381 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| GRIP LENGTH | 1.052 INCHES MINIMUM AND |
| 1.072 INCHES MAXIMUM |
| GRIP DIAMETER | 0.1885 INCHES MINIMUM AND |
| 0.1895 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS1580 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT, 100 DEGREES FLUSH HEAD |