5305-01-611-8957 SCREW,SHOULDER 5305-01-611-8521 SCREW,MACHINE

National Stock Number:
5305-01-611-8564

Federal Supply Class:
5305

National Item Identification Number:
016118564

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:
92949A07739428MCMASTER-CARR SUPPLY CO


Techincal Specification:
FASTENER LENGTH0.25 INCHES NOMINAL
HARDNESS RATING70.0 ROCKWELL B MINIMUM OVERALL
HEAD DIAMETER0.164 INCHES NOMINAL
HEAD HEIGHT0.046 INCHES NOMINAL
HEAD STYLEBUTTON
INTERNAL DRIVE STYLEHEXAGON
PART NAME ASSIGNED BY CONTROLLING AGENCY18-8 STAINLESS STEEL BUTTON SOCKET HEAD CAP SCREW
MATERIALSTEEL CORROSION RESISTING OVERALL
MINIMUM TENSILE STRENGTH70000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.086 INCHES
SPECIAL FEATURESSCREW MAY BE MILDLY MAGNETIC. MATERIAL IS 18-8 STAINLESS STEEL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.25 INCHES NOMINAL
THREAD QUANTITY PER INCH56
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.0468 INCHES NOMINAL


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