| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 1.135 INCHES MINIMUM AND 1.155 INCHES MAXIMUM |
| GRIP LENGTH | 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.3898 INCHES MINIMUM AND 0.3948 INCHES MAXIMUM |
| HEAD STYLE | FLUSH COUNTERSUNK |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | FLUSH SHEAR HEAD GRIP VARIATION |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5698 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | NICKEL ALLOY X-750 OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK STYLE | PIN-RIVET, TAPERED, THREADED |
| SPECIAL FEATURES | THREAD SERIES DESIGNATOR UNJF; NOMINAL THREAD SIZE 0.250 IN.; THREAD CLASS 3A; CHAMFER 0.031 IN. BY 45 DEGREES |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNJF |
| TIP DIAMETER | 0.2489 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |