5306-00-579-0678 BOLT,MACHINE Index 5306-00-579-0682 BOLT,INTERNAL WRENCHING

National Stock Number:
5306-00-579-0680

Federal Supply Class:
5306

National Item Identification Number:
005790680

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:
AN8C2188044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER2.031 INCHES MINIMUM AND 2.063 INCHES MAXIMUM FIRST HOLE
FASTENER LENGTH2.203 INCHES MINIMUM AND 2.250 INCHES MAXIMUM
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH1.422 INCHES MINIMUM AND 1.454 INCHES MAXIMUM
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.265 INCHES MINIMUM AND 0.297 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 431 OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES NOMINAL FIRST HOLE
WIDTH BETWEEN FLATS0.740 INCHES MINIMUM AND 0.752 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-B-6812 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.749 INCHES MINIMUM AND 0.828 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH20


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