| FASTENER LENGTH | 0.407 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| HARDNESS RATING | 247.0 BRINELL STANDARD MINIMUM AND 319.0 BRINELL STANDARD MAXIMUM OVERALL |
| HEAD DIAMETER | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| HEAD HEIGHT | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MINIMUM TENSILE STRENGTH | 140000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.164 INCHES |
| SPECIFICATION/STANDARD DATA | 80205-NAS1190 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| 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 QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNJC |