DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 1.275 INCHES MINIMUM AND 1.285 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 1.380 INCHES MINIMUM AND 1.400 INCHES MAXIMUM |
FEATURES PROVIDED | FINISHED HEAD |
GRIP LENGTH | 1.060 INCHES MINIMUM AND 1.120 INCHES MAXIMUM |
HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL CORROSION RESISTING OVERALL |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
SPECIAL FEATURES | 2 HOLES 90 DEGREES APART |
SHANK UNTHREADED HOLE DIAMETER | 0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM FIRST HOLE |
WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
SURFACE FINISH | 125.0 MICROINCHES TOP OF HEAD |
SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
SURFACE FINISH | 63.0 MICROINCHES GRIP |
THREAD LENGTH | 0.260 INCHES MINIMUM AND 0.340 INCHES MAXIMUM |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD SERIES DESIGNATOR | UNJF |
THREAD QUANTITY PER INCH | 28 |