5305-01-438-5208 SCREW,MACHINE Index 5305-01-438-5210 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-438-5209

Federal Supply Class:
5305

National Item Identification Number:
014385209

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:
103361-0142Y089CARDINAL FASTENER AND SPECIALTY CO INC


Techincal Specification:
FASTENER LENGTH4.820 INCHES MINIMUM AND 5.000 INCHES MAXIMUM
HEAD HEIGHT0.749 INCHES MINIMUM AND 0.813 INCHES MAXIMUM
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J429, GRADE 5 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER1.250 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633, TYPE 2 ASSN STD ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.750 INCHES MINIMUM
THREAD QUANTITY PER INCH12
THREAD SERIES DESIGNATORUNF
WIDTH BETWEEN FLATS1.812 INCHES MINIMUM AND 1.875 INCHES MAXIMUM


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