5305-01-330-9770 SCREW,CAP,SOCKET HEAD Index 5305-01-330-9772 SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-330-9771

Federal Supply Class:
5305

National Item Identification Number:
013309771

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:
0.750-10UNC-3AX2.250 IN. LG NICU80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
FF-S-8681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 84.0 DEGREES MAXIMUM
FASTENER LENGTH2.250 INCHES NOMINAL
HEAD DIAMETER1.355 INCHES MINIMUM AND 1.438 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY 400 OVERALL
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH40000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.750 INCHES
NONDEFINITIVE SPEC/STD DATA4 TYPE
WIDTH ACROSS FLATS5.000 INCHES NOMINAL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH1.654 INCHES MINIMUM AND 1.854 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH10


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