5305-01-566-6443 SCREW,CAP,HEXAGON HEAD Index 5305-01-566-6653 SCREW,MACHINE

National Stock Number:
5305-01-566-6497

Federal Supply Class:
5305

National Item Identification Number:
015666497

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:
B1821BH038F175L80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED


Techincal Specification:
THREAD SERIES DESIGNATORUNF
THREAD LENGTH1.000 INCHES NOMINAL
FASTENER LENGTH1.750 INCHES NOMINAL
MATERIALSTEEL OVERALL
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS2A
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A354 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCHROMATE ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HEAD HEIGHT0.235 INCHES NOMINAL
WIDTH BETWEEN FLATS0.557 INCHES NOMINAL
SPECIAL FEATURESSELF LOCKING


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