| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| COUNTERSINK HEIGHT | 0.600 INCHES MINIMUM AND 0.625 INCHES MAXIMUM |
| FASTENER LENGTH | 1.260 INCHES MINIMUM AND 1.280 INCHES MAXIMUM |
| GRIP LENGTH | 0.870 INCHES MINIMUM AND 0.880 INCHES MAXIMUM |
| HEAD HEIGHT | 0.010 INCHES MINIMUM AND 0.015 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.4210 INCHES MINIMUM AND 0.4260 INCHES MAXIMUM |
| HEAD MINOR DIAMETER | 0.4067 INCHES MINIMUM AND 0.4189 INCHES MAXIMUM |
| LUBRICATION | CETYL ALCOHOL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | PIN-RIVET,THREADED |
| MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK DIAMETER | 0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | HI-SHEAR SPEC.NO.294(HI-KOTE 1 ONLY) NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNJF |
| WIDTH BETWEEN FLATS | 0.122 INCHES MINIMUM AND 0.142 INCHES MAXIMUM |