| FASTENER LENGTH | 2.460 INCHES MINIMUM AND 2.520 INCHES MAXIMUM |
| HEAD DIAMETER | 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM |
| HEAD HEIGHT | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM |
| HEAD STYLE | BUTTON |
| MATERIAL | |
| NECK LENGTH | 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM |
| NECK WIDTH | 0.307 INCHES MINIMUM AND 0.324 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 2.273 INCHES MINIMUM AND 2.364 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |