FASTENER LENGTH | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM |
HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
HEAD HEIGHT | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
MATERIAL | STEEL COMP 8740 OVERALL |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
POINT CHAMFER ANGLE | 45.0 DEGREES NOMINAL |
POINT DIAMETER | 0.175 INCHES MINIMUM AND 0.195 INCHES MAXIMUM |
POINT LENGTH | 0.167 INCHES MINIMUM AND 0.207 INCHES MAXIMUM |
POINT STYLE | FLAT |
WIDTH BETWEEN FLATS | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
THREAD SERIES DESIGNATOR | UNF |
THREAD QUANTITY PER INCH | 28 |