| FASTENER LENGTH | 1.268 INCHES MINIMUM AND 1.278 INCHES MAXIMUM |
| GRIP LENGTH | 0.489 INCHES MINIMUM AND 0.499 INCHES MAXIMUM |
| HEAD HEIGHT | 0.140 INCHES MINIMUM AND 0.150 INCHES MAXIMUM |
| HEAD MAJOR DIAMETER | 0.461 INCHES MINIMUM AND 0.471 INCHES MAXIMUM |
| NOMINAL THREAD SIZE | 0.3125 INCHES |
| SHANK DIAMETER | 0.3269 INCHES MINIMUM AND 0.3271 INCHES MAXIMUM |
| SHANK STYLE | PIN-RIVET, STRAIGHT, THREADED |
| WIDTH BETWEEN FLATS | 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | NICKEL AND CADMIUM OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNS |