5305-01-583-2782 SCREW,MACHINE Index 5305-01-583-2800 SCREW,MACHINE

National Stock Number:
5305-01-583-2792

Federal Supply Class:
5305

National Item Identification Number:
015832792

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:
7220074445H-K CONNECTICUT HOLDING COMPANY


Techincal Specification:
COLORBLACK OVERALL
FASTENER LENGTH3.000 INCHES NOMINAL
HARDNESS RATING39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT0.438 INCHES NOMINAL
HEAD STYLEHEXAGON
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH180000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.438 INCHES
SURFACE TREATMENTOXIDE OR BLACK CHEMICAL FINISH OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.750 INCHES NOMINAL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH14
WIDTH ACROSS FLATS0.312 INCHES NOMINAL
WIDTH BETWEEN FLATS0.656 INCHES NOMINAL


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