| FASTENER LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| HEAD DIAMETER | 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM |
| HEAD HEIGHT | 0.116 INCHES MINIMUM AND 0.158 INCHES MAXIMUM |
| HEAD STYLE | ROUND |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL | STEEL OVERALL |
| PRIMARY WASHER MATERIAL THICKNESS | 0.039 INCHES MINIMUM AND 0.061 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.307 INCHES MINIMUM AND 0.320 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | DOME INTERNAL TEETH |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.490 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNC |