5305-01-591-8251 SCREW,MACHINE 5305-01-591-8584 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-591-8577

Federal Supply Class:
5305

National Item Identification Number:
015918577

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:
91251A35139428MCMASTER-CARR SUPPLY CO


Techincal Specification:
COLORBLACK OVERALL
FASTENER LENGTH1.500 INCHES NOMINAL
HARDNESS RATING39.0 ROCKWELL C MINIMUM OVERALL
HEAD DIAMETER0.312 INCHES NOMINAL
HEAD HEIGHT0.190 INCHES NOMINAL
HEAD STYLEFILLISTER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYSOCKET HEAD CAP SCREW
WIDTH ACROSS FLATS0.156 INCHES NOMINAL
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.875 INCHES MINIMUM AND 1.375 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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