| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| FASTENER LENGTH | 0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 0.231 INCHES MINIMUM AND 0.279 INCHES MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| LOCKING FEATURE | PELLET THREADS |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| SPECIFICATION/STANDARD DATA | 80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 34 |
| THREAD LENGTH | 0.225 INCHES MINIMUM AND 0.318 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJC |
| THREAD QUANTITY PER INCH | 32 |