5306-01-092-8127 BOLT,MACHINE Index 5306-01-092-8129 BOLT,MACHINE

National Stock Number:
5306-01-092-8128

Federal Supply Class:
5306

National Item Identification Number:
010928128

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:
SS27576-4-070UCY9M.S. AEROSPACE INC.
SS27576-4-0729372HOWMET GLOBAL FASTENING SYSTEMS INC.
SS27576-4-0756878SPS TECHNOLOGIES, LLC
SS27576-4-0758794FASTENER TECHNOLOGY CORP
SS27576-4-0778286SIKORSKY AIRCRAFT CORPORATION
SS27576-4-0780539SPS TECHNOLOGIES, LLC
SS27576-4-0784256AVIBANK MFG., INC.


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
FASTENER LENGTH0.856 INCHES MINIMUM AND
0.876 INCHES MAXIMUM
MATERIALSTEEL OVERALL
THREAD LENGTH0.418 INCHES MINIMUM AND
0.422 INCHES MAXIMUM
HEAD STYLECROWNED HEXAGON
THREAD SERIES DESIGNATORUNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND
41.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.126 INCHES MINIMUM AND
0.141 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.488 INCHES NOMINAL
GRIP LENGTH0.438 INCHES MINIMUM AND
0.454 INCHES MAXIMUM


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