5306-00-151-1928 BOLT,MACHINE Index 5306-00-151-1930 BOLT,MACHINE

National Stock Number:
5306-00-151-1929

Federal Supply Class:
5306

National Item Identification Number:
001511929

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:
60-12-2480049DEPARTMENT OF THE AIR FORCE
60-12-2499238AIR FORCE STANDARD
FFB571ANDTYPEB2ANDCLASSC81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
FASTENER LENGTH2.500 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
GRIP LENGTH1.000 INCHES NOMINAL
HEAD HEIGHT0.493 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.750 INCHES
NONDEFINITIVE SPEC/STD DATAB2 TYPE AND C CLASS
WIDTH BETWEEN FLATS1.125 INCHES NOMINAL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.500 INCHES MINIMUM
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNF


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