5306-00-926-5675 BOLT,MACHINE Index 5306-00-926-5680 BOLT,MACHINE

National Stock Number:
5305-00-926-5679

Federal Supply Class:
5305

National Item Identification Number:
009265679

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:
M60FS518-8B026233NYLOK LLC
M66H518-008B26233NYLOK LLC


Techincal Specification:
COLORBLACK OVERALL
FASTENER LENGTH0.500 INCHES NOMINAL
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.438 INCHES NOMINAL
HEAD HEIGHT0.312 INCHES NOMINAL
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.218 INCHES NOMINAL
SURFACE TREATMENTOXIDE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.500 INCHES MAXIMUM


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