5306-00-180-0514 BOLT,CLOSE TOLERANCE Index 5306-00-180-0516 BOLT,CLOSE TOLERANCE

National Stock Number:
5306-00-180-0515

Federal Supply Class:
5306

National Item Identification Number:
001800515

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.


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER3.234 INCHES MINIMUM AND 3.266 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH3.234 INCHES MINIMUM AND 3.266 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH2.593 INCHES MINIMUM AND 2.625 INCHES MAXIMUM
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.375 INCHES
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.116 INCHES MAXIMUM FIRST HOLE
WIDTH BETWEEN FLATS0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM AND DICHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.641 INCHES MAXIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNF


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