| FASTENER LENGTH | 0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD HEIGHT | 0.074 INCHES MINIMUM AND 0.086 INCHES MAXIMUM |
| HEAD DIAMETER | 0.221 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| HEAD STYLE | PAN NO. 2 |
| INTERNAL DRIVE STYLE | OFFSET CRUCIFORM (TORQUE SET) |
| LOCKING FEATURE | PATCH THREADS |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 85000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| SPECIFICATION/STANDARD DATA | 80205-NAS1191 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.345 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJC |
| THREAD QUANTITY PER INCH | 32 |