5305-01-342-8563 SCREW,CAP,SOCKET HEAD Index 5305-01-342-8565 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-342-8564

Federal Supply Class:
5305

National Item Identification Number:
013428564

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:
0.500-13 UNC-2A X 1.375-NICU80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
FF-S-8681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
COUNTERSINK ANGLE80.0 DEGREES NOMINAL
FASTENER LENGTH1.375 INCHES NOMINAL
HEAD DIAMETER0.775 INCHES MINIMUM AND 0.875 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 400 OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES
NONDEFINITIVE SPEC/STD DATA4 TYPE
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.970 INCHES MINIMUM AND 1.124 INCHES MAXIMUM
THREAD QUANTITY PER INCH13
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.312 INCHES NOMINAL


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