| COLLAR STYLE | THREADED BREAK OFF TYPE |
| COLLAR INSIDE DIAMETER | 0.255 INCHES NOMINAL |
| COLLAR OUTSIDE DIAMETER | 0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM |
| COLLAR OVERALL HEIGHT | 0.522 INCHES MINIMUM AND 0.552 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 90.0 DEGREES MINIMUM AND 100.0 DEGREES MAXIMUM |
| GRIP LENGTH | 0.625 INCHES 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 | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5520 ASSN STD SINGLE MATERIAL RESPONSE WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS6415 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6349 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5640 ASSN STD SINGLE MATERIAL RESPONSE COLLAR |
| MATERIAL | STEEL COMP 303 COLLAR |
| MATERIAL | STEEL COMP 630 OR STEEL COMP 631 OR STEEL COMP 632 WASHER |
| MATERIAL | STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 BODY |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SHANK DIAMETER | 0.2410 INCHES MINIMUM AND 0.2440 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| WIDTH BETWEEN FLATS | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE I, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE I, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE COLLAR |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE BODY |
| SURFACE TREATMENT | CADMIUM AND CHROMATE BODY |
| SURFACE TREATMENT | CADMIUM COLLAR |
| SURFACE TREATMENT | CADMIUM WASHER |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES DESIGNATOR | UNJF |
| THREAD QUANTITY PER INCH | 28 |