| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| FASTENER LENGTH | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM |
| GRIP LENGTH | 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM |
| HEAD STYLE | FLUSH COUNTERSUNK |
| HEAD MAJOR DIAMETER | 0.287 INCHES MINIMUM AND 0.292 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.164 INCHES |
| SHANK DIAMETER | 0.1635 INCHES MINIMUM AND 0.1640 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 95000 SINGLE POUNDS PER SQUARE INCH |
| WIDTH BETWEEN FLATS | 0.064 INCHES MINIMUM AND 0.065 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | HI-SNEAR,SPEC. 258,CAGEC 73197 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 36 |
| THREAD SERIES DESIGNATOR | UNJC |