5306-00-206-9738 BOLT,U Index 5305-00-206-9751 SCREW,EXTERNALLY RELIEVED BODY

National Stock Number:
5305-00-206-9744

Federal Supply Class:
5305

National Item Identification Number:
002069744

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.


Manufacturer Information:
18966377445RTX CORPORATION
18966380539SPS TECHNOLOGIES, LLC


Techincal Specification:
FASTENER LENGTH0.688 INCHES NOMINAL
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.156 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
NONSTANDARD THREAD PITCH DIAMETER+0.2216 TO 0.2238 INCHES
WIDTH BETWEEN FLATS0.438 INCHES NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.688 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNRF


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