5305-01-566-6387 SCREW,MACHINE Index 5305-01-566-6443 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-566-6400

Federal Supply Class:
5305

National Item Identification Number:
015666400

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:
91253A7300KVE6MCMASTER-CARR SUPPLY CO


Techincal Specification:
COLORBLACK OVERALL
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
FASTENER LENGTH4.500 INCHES NOMINAL
HARDNESS RATING39.0 ROCKWELL C MINIMUM OVERALL
HEAD DIAMETER0.938 INCHES NOMINAL
HEAD HEIGHT0.251 INCHES NOMINAL
HEAD STYLEFLAT COUNTERSUNK UNDERCUT
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
MINIMUM TENSILE STRENGTH144000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.500 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYSHS 1/2-13 X 4 1/2
WIDTH ACROSS FLATS0.313 INCHES NOMINAL
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.500 INCHES MINIMUM AND 2.375 INCHES MAXIMUM
THREAD QUANTITY PER INCH13
THREAD SERIES DESIGNATORUNC


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