| FASTENER LENGTH | 0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM |
| HEAD DIAMETER | 0.208 INCHES MINIMUM AND 0.226 INCHES MAXIMUM |
| HEAD HEIGHT | 0.086 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
| HEAD STYLE | FILLISTER |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 0.138 INCHES |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.218 INCHES MINIMUM AND 0.231 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | SPLIT HELICAL RING |
| PRIMARY WASHER MATERIAL THICKNESS | 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.406 INCHES MINIMUM AND 0.468 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |
| THREAD QUANTITY PER INCH | 40 |