DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.668 INCHES MINIMUM AND 0.688 INCHES MAXIMUM FIRST HOLE |
FASTENER LENGTH | 0.780 INCHES MINIMUM AND 0.827 INCHES MAXIMUM |
GRIP DIAMETER | 0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM |
GRIP LENGTH | 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM |
HARDNESS RATING | 51.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM |
HEAD STYLE | DOUBLE HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6485 ASSN STD SINGLE MATERIAL RESPONSE OR AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP H11 OVERALL |
MINIMUM TENSILE STRENGTH | 260000 POUNDS PER SQUARE INCH |
NOMINAL THREAD DIAMETER | 0.312 INCHES |
SHANK UNTHREADED HOLE DIAMETER | 0.076 INCHES NOMINAL FIRST HOLE |
SPECIFICATION/STANDARD DATA | 81205-BACB30EK MANUFACTURERS STANDARD |
WIDTH BETWEEN FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL |
SURFACE TREATMENT | NICKEL AND CADMIUM OVERALL |
THREAD CLASS | 3A |
THREAD LENGTH | 0.332 INCHES MINIMUM AND 0.399 INCHES MAXIMUM |
THREAD DIRECTION | RIGHT-HAND |
THREAD QUANTITY PER INCH | 24 |
THREAD SERIES DESIGNATOR | UNJF |