| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD LENGTH | 0.202 INCHES MINIMUM AND |
| 0.295 INCHES MAXIMUM |
| FASTENER LENGTH | 0.344 INCHES MINIMUM AND |
| 0.375 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP E4340 OR |
| STEEL COMP 6150 OR |
| STEEL COMP 8735 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR |
| MIL-S-5000 MIL SPEC 2ND MATERIAL RESPONSE OR |
| MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR |
| MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR |
| MIL-S-6049 MIL SPEC 5TH 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 | 36.0 ROCKWELL C MINIMUM AND |
| 40.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.322 INCHES MINIMUM AND |
| 0.385 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| LOCKING FEATURE | STRIP THREADS |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| 32.0 MICROINCHES THREADS |
| SPECIFICATION/STANDARD DATA | 80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |