| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 258 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | FLUSH COUNTERSUNK |
| HEAD MAJOR DIAMETER | 0.3256 INCHES MINIMUM AND |
| 0.3304 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| FASTENER LENGTH | 0.7495 INCHES NOMINAL |
| WIDTH BETWEEN FLATS | 0.0791 INCHES MINIMUM AND |
| 0.0801 INCHES MAXIMUM |
| SHANK DIAMETER | 0.1625 INCHES MINIMUM AND |
| 0.1635 INCHES MAXIMUM |
| GRIP LENGTH | 0.4375 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNJC |
| NOMINAL THREAD SIZE | 0.1640 INCHES |
| THREAD CLASS | 3A |
| THREAD QUANTITY PER INCH | 32 |
| THREAD DIRECTION | RIGHT-HAND |
| LUBRICATION | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PIN 100 DEGREES FLUSH TENSION HEAD |