DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.251 INCHES NOMINAL |
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.790 INCHES NOMINAL FIRST HOLE |
EXTENDED WASHER THICKNESS | 0.065 INCHES NOMINAL |
EXTENDED WASHER DIAMETER | 0.438 INCHES NOMINAL |
EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 1 |
FASTENER LENGTH | 0.906 INCHES NOMINAL |
FIRST DIAMETER FROM HEAD | 0.226 INCHES NOMINAL |
HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.330 INCHES NOMINAL |
HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
MATERIAL | STEEL OVERALL |
MINIMUM TENSILE STRENGTH | 124000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.069 INCHES NOMINAL FIRST HOLE |
WIDTH BETWEEN FLATS | 0.310 INCHES NOMINAL |
THREAD DIRECTION | RIGHT-HAND |
THREAD CLASS | 3A |
THREAD LENGTH | 0.655 INCHES MINIMUM |
THREAD SERIES DESIGNATOR | UNF |
THREAD QUANTITY PER INCH | 28 |