| FASTENER LENGTH | 0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM |
| HEAD DIAMETER | 0.546 INCHES MINIMUM AND 0.573 INCHES MAXIMUM |
| HEAD HEIGHT | 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
| HEAD STYLE | PAN |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL | STEEL COMP 1010 OVERALL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| PRIMARY WASHER MATERIAL THICKNESS | 0.056 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.395 INCHES MINIMUM AND 0.425 INCHES MAXIMUM |
| PRIMARY WASHER STYLE | FLAT |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.703 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| THREAD QUANTITY PER INCH | 20 |
| WASHER QUANTITY | 1 |