DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.750 INCHES NOMINAL FIRST HOLE6.250 INCHES NOMINAL SECOND HOLE |
CONCENTRIC HOLE DEPTH | 3.250 INCHES NOMINAL |
CONCENTRIC HOLE DIAMETER | 0.188 INCHES NOMINAL |
FASTENER LENGTH | 6.500 INCHES NOMINAL |
HARDNESS RATING | 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.380 INCHES NOMINAL |
HEAD STYLE | HEXAGON |
MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
MATERIAL | STEEL COMP 4135 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 4142 OR STEEL COMP 4145 OVERALL |
NOMINAL THREAD DIAMETER | 1.000 INCHES |
SPECIAL FEATURES | ANNEAL HEAD AND THREADS; UNDER THE HEAD IS A 0.380 IN. NECK HEIGHT WITH 12 TPI 0.034 OVER SHANK DIA. |
SHANK UNTHREADED HOLE DIAMETER | 0.188 INCHES NOMINAL FIRST HOLE0.218 INCHES NOMINAL SECOND HOLE |
WIDTH BETWEEN FLATS | 1.590 INCHES NOMINAL |
STYLE DESIGNATOR | CONCENTRIC HOLE UNTHREADED |
THREAD DIRECTION | RIGHT-HAND |
THREAD CLASS | 2A |
THREAD LENGTH | 1.250 INCHES NOMINAL |
THREAD QUANTITY PER INCH | 14 |
THREAD SERIES DESIGNATOR | UNC |