5305-01-086-3552 SCREW,MACHINE Index 5305-01-086-3555 SCREW,TAPPING

National Stock Number:
5305-01-086-3553

Federal Supply Class:
5305

National Item Identification Number:
010863553

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:
LK35311-526304TORKON FASTENER CORP


Techincal Specification:
THREAD SERIES DESIGNATORUNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.495 INCHES MINIMUM AND
0.625 INCHES MAXIMUM
FASTENER LENGTH0.595 INCHES MINIMUM AND
0.625 INCHES MAXIMUM
MATERIALPLASTIC LOCKING FEATURE
NICKEL ALLOY 400 FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CL A FED SPEC SINGLE MATERIAL RESPONSE FASTENER
HEAD STYLEHEXAGON
HEAD HEIGHT0.150 INCHES MINIMUM AND
0.163 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.4280 INCHES MINIMUM AND
0.4375 INCHES MAXIMUM
INTERNAL DRIVE STYLEW/O INTERNAL DRIVE
LOCKING FEATUREPATCH OR
PELLET OR
STRIP THREADS


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