5305-01-556-9101 SCREW,CAP,SOCKET HEAD Index 5305-01-557-4420 SCREW,MACHINE

National Stock Number:
5305-01-556-9547

Federal Supply Class:
5305

National Item Identification Number:
015569547

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:
92186A5943A054MCMASTER-CARR SUPPLY CO


Techincal Specification:
FASTENER LENGTH2.750 INCHES NOMINAL
HARDNESS RATING70.0 ROCKWELL B MINIMUM OVERALL
HEAD STYLEHEXAGON
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
MATERIALSTEEL COMP 316 OVERALL
MINIMUM TENSILE STRENGTH70000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.312 INCHES
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH18
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND


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