| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SPEC 258, CAGEC 73197 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SHEAR STRENGTH | 95000 SINGLE POUNDS PER SQUARE INCH |
| HEAD HEIGHT | 0.064 INCHES MINIMUM AND |
| 0.074 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.357 INCHES MINIMUM AND |
| 0.377 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| FASTENER LENGTH | 0.513 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.0791 INCHES MINIMUM AND |
| 0.0806 INCHES MAXIMUM |
| SHANK DIAMETER | 0.1890 INCHES MINIMUM AND |
| 0.1895 INCHES MAXIMUM |
| GRIP LENGTH | 0.188 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |