| FASTENER LENGTH | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM |
| HEAD DIAMETER | 0.146 INCHES MINIMUM AND 0.162 INCHES MAXIMUM |
| HEAD HEIGHT | 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM |
| HEAD STYLE | ROUND |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.086 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.011 INCHES MINIMUM AND 0.015 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT INTERNAL TEETH |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.204 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 56 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| WASHER QUANTITY | 1 |