5305-01-285-2012 SCREW,MACHINE Index 5306-01-285-2014 BOLT,MACHINE

National Stock Number:
5305-01-285-2013

Federal Supply Class:
5305

National Item Identification Number:
012852013

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:
501-4675660 ITEM 4480064NAVAL SHIP SYSTEMS COMMAND
60-16-676196169ELECTRIC BOAT CORPORATION


Techincal Specification:
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
FASTENER LENGTH2.500 INCHES NOMINAL
HEAD DIAMETER0.872 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATURESTRIP OR PATCH OR PELLET THREADS
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES
WIDTH ACROSS FLATS0.312 INCHES NOMINAL
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH2.087 INCHES NOMINAL
THREAD QUANTITY PER INCH13
THREAD SERIES DESIGNATORUNC


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