| FASTENER LENGTH | 1.940 INCHES MINIMUM AND 1.940 INCHES MINIMUM AND 2.060 INCHES MAXIMUM2.060 INCHES MAXIMUM |
| HEAD DIAMETER | 1.219 INCHES MINIMUM AND 1.219 INCHES MINIMUM AND 1.344 INCHES MAXIMUM1.344 INCHES MAXIMUM |
| HEAD HEIGHT | 0.313 INCHES MINIMUM AND 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM0.344 INCHES MAXIMUM |
| HEAD STYLE | BUTTONBUTTON |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| NECK LENGTH | 0.313 INCHES MINIMUM AND 0.313 INCHES MINIMUM AND 0.344 INCHES MAXIMUM0.344 INCHES MAXIMUM |
| NECK WIDTH | 0.616 INCHES MINIMUM AND 0.616 INCHES MINIMUM AND 0.642 INCHES MAXIMUM0.642 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.625 INCHES0.625 INCHES |
| THREAD CLASS | 2A2A |
| THREAD DIRECTION | RIGHT-HANDRIGHT-HAND |
| THREAD LENGTH | 1.414 INCHES MINIMUM AND 1.414 INCHES MINIMUM AND 1.747 INCHES MAXIMUM1.747 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 1111 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |