5305-01-554-6688 SCREW,CAP,HEXAGON HEAD Index 5305-01-553-9262 SCREW,MACHINE

National Stock Number:
5305-01-555-0445

Federal Supply Class:
5305

National Item Identification Number:
015550445

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:
AES01C500A00AW9A8705047THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
B1821BH050C100D80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED


Techincal Specification:
THREAD SERIES DESIGNATORUNC
THREAD LENGTH1.000 INCHES NOMINAL
MATERIALSTEEL OVERALL
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER0.500 INCHES
THREAD CLASS2A
SURFACE TREATMENTZINC OVERALL
HEAD HEIGHT0.313 INCHES NOMINAL
WIDTH BETWEEN FLATS0.743 INCHES NOMINAL


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