5306-00-638-1936 BOLT,MACHINE Index 5306-00-638-1946 BOLT,MACHINE

National Stock Number:
5306-00-638-1945

Federal Supply Class:
5306

National Item Identification Number:
006381945

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.


Manufacturer Information:
332C258P1107482GENERAL ELECTRIC COMPANY
332C258P1124446GENERAL ELECTRIC COMPANY


Techincal Specification:
EXTENDED WASHER DIAMETER0.420 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
EXTENDED WASHER THICKNESS0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
FASTENER LENGTH0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM
HEAD STYLEDOUBLE HEXAGON W/HOLE
HOLE CONFIGURATION STYLEDOUBLE HEXAGON LONGITUDINAL HOLE
HOLE DIAMETER0.062 INCHES NOMINAL
HOLE QUANTITY4
HOLE TYPEDRILLED
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH70000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
WIDTH BETWEEN FLATS0.304 INCHES MINIMUM AND 0.313 INCHES MAXIMUM
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH63.0 MICROINCHES GRIP
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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