5305-01-612-6122 SCREW,MACHINE 5305-01-612-6266 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-612-6260

Federal Supply Class:
5305

National Item Identification Number:
016126260

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:
91290A54039428MCMASTER-CARR SUPPLY CO


Techincal Specification:
EXTENDED WASHER DIAMETER16.0 MILLIMETERS NOMINAL
FASTENER LENGTH75.0 MILLIMETERS NOMINAL
HEAD HEIGHT10.0 MILLIMETERS NOMINAL
HEAD STYLECHAMFER FLANGE
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL OVERALL
NONSTANDARD THREAD PITCH DIAMETER+1.0 TO 1.5 MILLIMETERS
SPECIAL FEATURESMINIMUM ROCKWELL HARDNESS OF C39 AND MINIMUM TENSILE STRENGTH OF 174,000PSI DIMENSIONS MEET DIN912/ISO4762
WIDTH BETWEEN FLATS10.0 MILLIMETERS NOMINAL
WIDTH ACROSS FLATS8.0 MILLIMETERS NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH32.0 MILLIMETERS MINIMUM AND 39.5 MILLIMETERS MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)


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