| COUNTERSINK ANGLE | 99.3 DEGREES MINIMUM AND 100.3 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.038 INCHES MINIMUM AND 1.048 INCHES MAXIMUM |
| GRIP LENGTH | 0.683 INCHES MINIMUM AND 0.693 INCHES MAXIMUM |
| HEAD HEIGHT | 0.108 INCHES NOMINAL |
| HEAD MAJOR DIAMETER | 0.475 INCHES NOMINAL |
| HEAD STYLE | FLUSH COUNTERSUNK |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | TITANIUM ALLOY UNS R56400 OVERALL |
| MINIMUM TENSILE STRENGTH | 5820 POUNDS PER SQUARE INCH |
| 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 | 9300 DOUBLE POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | S"INDICATES SPLINE LOCK RECESS |
| WIDTH BETWEEN FLATS | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |