5306-00-297-8753 BOLT,MACHINE Index 5306-00-297-8758 BOLT,MACHINE

National Stock Number:
5306-00-297-8757

Federal Supply Class:
5306

National Item Identification Number:
002978757

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:
FFB575TYPE3GR181348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH2.000 INCHES NOMINAL
MATERIALSTEEL OVERALL
THREAD LENGTH0.875 INCHES MINIMUM
HEAD STYLEHEXAGON
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS2A
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CH C FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING95.5 ROCKWELL B NOMINAL OVERALL
MINIMUM TENSILE STRENGTH55000 POUNDS PER SQUARE INCH
HEAD HEIGHT0.203 INCHES NOMINAL
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL
GRIP LENGTH1.125 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
NONDEFINITIVE SPEC/STD DATA3 TYPE AND
1 GRADE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFFB575TYPE3GR1


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