3040-01-418-2343 SHAFT,SHOULDERED Index 4810-01-418-2345 VALVE,BUTTERFLY

National Stock Number:
5305-01-418-2344

Federal Supply Class:
5305

National Item Identification Number:
014182344

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:
B18231B10027N80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED


Techincal Specification:
THREAD SERIES DESIGNATORM
THREAD LENGTH23.2 MILLIMETERS NOMINAL
FASTENER LENGTH27.0 MILLIMETERS NOMINAL
MATERIALSTEEL PROPERTY CLASS 10.9 OVERALL
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD DIAMETER10.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS1.5
EXTERNAL THREAD TOLERANCE CLASS6G
SURFACE TREATMENTZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325, TY 2, CL 3. FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAD HEIGHT6.17 MILLIMETERS MINIMUM AND
6.63 MILLIMETERS MAXIMUM
WIDTH BETWEEN FLATS15.73 MILLIMETERS MINIMUM AND
16.00 MILLIMETERS MAXIMUM


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