5305-01-229-0253 SCREW,CAP,HEXAGON HEAD Index 5306-01-229-0255 BOLT,CLOSE TOLERANCE

National Stock Number:
5305-01-229-0254

Federal Supply Class:
5305

National Item Identification Number:
012290254

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:
423-25072741DORMAN PRODUCTS, INC.
908-07472741DORMAN PRODUCTS, INC.


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS6G
FASTENER LENGTH50.00 MILLIMETERS NOMINAL
HARDNESS RATING18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT4.50 MILLIMETERS NOMINAL
HEAD STYLEHEXAGON
MATERIALSTEEL PROPERTY CLASS 8.8 OVERALL
MINIMUM YIELD STRENGTH91000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH113784 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER6.0 MILLIMETERS
SPECIAL FEATURESGREEN DICHROMATE COATED
WIDTH BETWEEN FLATS10.00 MILLIMETERS NOMINAL
SURFACE TREATMENTDICHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH48.00 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS1.0


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