| COUNTERSINK ANGLE | 155.0 DEGREES MINIMUM AND 157.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 3.2600 INCHES MINIMUM AND 3.2800 INCHES MAXIMUM |
| GRIP LENGTH | 2.8700 INCHES MINIMUM AND 2.8800 INCHES MAXIMUM |
| HEAD HEIGHT | 0.0630 INCHES MINIMUM AND 0.0870 INCHES MAXIMUM |
| HEAD STYLE | COOPER'S |
| HEAD MAJOR DIAMETER | 0.7000 INCHES MINIMUM AND 0.8000 INCHES MAXIMUM |
| LUBRICATION | CETYL ALCOHOL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL |
| NOMINAL THREAD SIZE | 0.2500 INCHES |
| SHANK DIAMETER | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| SHEAR STRENGTH | 95000 SINGLE POUNDS PER SQUARE INCH |
| WIDTH BETWEEN FLATS | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |