| FASTENER LENGTH | 0.312 INCHES NOMINAL |
| HEAD DIAMETER | 0.169 INCHES MINIMUM AND 0.187 INCHES MAXIMUM |
| HEAD HEIGHT | 0.067 INCHES MINIMUM AND 0.078 INCHES MAXIMUM |
| HEAD STYLE | ROUND |
| INTERNAL DRIVE STYLE | SLOT |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 1010 OVERALL |
| MINIMUM TENSILE STRENGTH | 60000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.099 INCHES |
| PRIMARY WASHER STYLE | FLAT EXTERNAL TEETH |
| PRIMARY WASHER MATERIAL THICKNESS | 0.012 INCHES NOMINAL |
| PRIMARY WASHER OUTSIDE DIAMETER | 0.195 INCHES MINIMUM AND 0.205 INCHES MAXIMUM |
| WASHER QUANTITY | 1 |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 2A |
| THREAD LENGTH | 0.290 INCHES MINIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 48 |
| THREAD SERIES DESIGNATOR | UNC |