| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.224 INCHES MINIMUM AND 0.230 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.309 INCHES MINIMUM AND 0.315 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.030 INCHES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| FASTENER LENGTH | 0.750 INCHES NOMINAL |
| FIRST DIAMETER FROM HEAD | 0.344 INCHES NOMINAL |
| HEAD DIAMETER | 0.500 INCHES NOMINAL |
| HEAD HEIGHT | 0.188 INCHES NOMINAL |
| HEAD STYLE | ROUND W/WRENCH FLATS |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| SECOND DIAMETER FROM HEAD | 0.374 INCHES NOMINAL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.438 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNC |
| WIDTH BETWEEN FLATS | 0.375 INCHES NOMINAL |
| THIRD DIAMETER FROM HEAD | 1.795 INCHES MINIMUM AND 1.805 INCHES MAXIMUM |