DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.046 INCHES MINIMUM AND 0.078 INCHES MAXIMUM |
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM |
FASTENER LENGTH | 0.640 INCHES MINIMUM AND 0.672 INCHES MAXIMUM |
FIRST DIAMETER FROM HEAD | 0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM |
HEAD DIAMETER | 0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM |
HEAD HEIGHT | 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | HEXAGON |
MATERIAL | STEEL COMP 303 OVERALL |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SECOND DIAMETER FROM HEAD | 0.250 INCHES MINIMUM AND 0.252 INCHES MAXIMUM |
WIDTH ACROSS FLATS | 0.140 INCHES MINIMUM AND 0.172 INCHES MAXIMUM |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THIRD DIAMETER FROM HEAD | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM |
THREAD LENGTH | 0.218 INCHES MINIMUM AND 0.282 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 20 |
THREAD SERIES DESIGNATOR | UNC |