| COLLAR STYLE | THREADED BREAK OFF TYPE |
| COLLAR INSIDE DIAMETER | 0.268 INCHES MINIMUM AND 0.272 INCHES MAXIMUM |
| COLLAR OUTSIDE DIAMETER | 0.408 INCHES MINIMUM AND 0.412 INCHES MAXIMUM |
| COLLAR OVERALL HEIGHT | 0.532 INCHES MINIMUM AND 0.552 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 45.0 DEGREES NOMINAL |
| HEAD HEIGHT | 0.077 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.415 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |
| HEAD STYLE | COUNTERSUNK W/REVERSE CHAMFER |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| MATERIAL | STEEL BODY |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK DIAMETER | 0.264 INCHES MINIMUM AND 0.265 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, TAPERED, THREADED |
| SHEAR STRENGTH | 10490 DOUBLE POUNDS PER SQUARE INCH |
| SPECIAL FEATURES | COLLAR FINISH CADMIUM PLATE PER AMS-QQ-P-416, TYPE I, CLASS 2; GRIP LENGTH IN INCHES 0.500 |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE I, CLASS2 FED SPEC SINGLE TREATMENT RESPONSE BODY |
| SURFACE TREATMENT | CADMIUM BODY |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |
| TIP DIAMETER | 0.241 INCHES MINIMUM AND 0.244 INCHES MAXIMUM |