BOEING COMPANY, THE | 43999 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.252 INCHES MINIMUM AND 0.364 INCHES MAXIMUM |
FASTENER LENGTH | 0.699 INCHES MINIMUM AND 0.729 INCHES MAXIMUM |
HEAD STYLE | HEXAGON |
HEAD HEIGHT | 0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM |
WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM |
INTERNAL DRIVE STYLE | HEXAGON |
NOMINAL THREAD DIAMETER | 0.190 INCHES |
WIDTH ACROSS FLATS | 0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM |
THREAD QUANTITY PER INCH | 32 |
MINIMUM TENSILE STRENGTH | 140000 POUNDS PER SQUARE INCH |
HARDNESS RATING | 24.0 ROCKWELL C MINIMUM OVERALL AND 35.0 ROCKWELL C MAXIMUM OVERALL |
MINIMUM YIELD STRENGTH | 85000 POUNDS PER SQUARE INCH |
SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
SURFACE FINISH | 32.0 MICROINCHES GRIP |
SURFACE FINISH | 32.0 MICROINCHES THREADS |
MATERIAL | IRON ALLOY 660 OVERALL |
MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
SURFACE TREATMENT | PASSIVATE OVERALL |
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
THREAD SERIES DESIGNATOR | UNJF |
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE. |