| THREAD SERIES DESIGNATOR | UNC |
| NOMINAL THREAD DIAMETER | 0.086 INCHES |
| THREAD QUANTITY PER INCH | 56 |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.183 INCHES MINIMUM AND |
| 0.250 INCHES MAXIMUM |
| FASTENER LENGTH | 0.219 INCHES MINIMUM AND |
| 0.250 INCHES MAXIMUM |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OR |
| QQ-S-637 FED SPEC SINGLE MATERIAL RESPONSE OR |
| 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND |
| CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH |
| HEAD STYLE | PAN |
| HEAD DIAMETER | 0.155 INCHES MINIMUM AND |
| 0.167 INCHES MAXIMUM |
| HEAD HEIGHT | 0.053 INCHES MINIMUM AND |
| 0.062 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| LOCKING FEATURE | PELLET OR |
| STRIP THREADS |
| NONDEFINITIVE SPEC/STD DATA | 3 TYPE OR |
| 9C STYLE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | FFS92 |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS21090-0202 |