5305-01-578-4878 SCREW,MACHINE Index 5305-01-578-5154 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-578-5014

Federal Supply Class:
5305

National Item Identification Number:
015785014

Description:
SCREW,CAP,SOCKET HEAD

Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.


Manufacturer Information:
NAS1352-02H4P80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
FASTENER LENGTH0.250 INCHES NOMINAL
HEAD DIAMETER0.134 INCHES MINIMUM AND 0.140 INCHES MAXIMUM
HEAD HEIGHT0.083 INCHES MINIMUM AND 0.086 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW CAP SOCKET HEAD UNDRILLED AND DRILLED PLAIN AND SELF LOCKING ALLOY STEEL CORROSION RESISTANT STEEL AND HEAT RESISTANT STEEL UNRC 3A AND UNRC 2A
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.086 INCHES
SPECIAL FEATURESITEM HAS DRILLED HEAD
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.250 INCHES NOMINAL
THREAD QUANTITY PER INCH56
THREAD SERIES DESIGNATORUNRC
WIDTH ACROSS FLATS0.078 INCHES NOMINAL


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