5305-01-250-9211 SCREW,CAP,SOCKET HEAD Index 5305-01-250-9213 SETSCREW

National Stock Number:
5305-01-250-9212

Federal Supply Class:
5305

National Item Identification Number:
012509212

Description:
SETSCREW

Detail:
An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.


Manufacturer Information:
FF-S-20081348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
FASTENER LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
HEAD STYLEHEADLESS (SETSCREW)
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CLASSB FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALNICKEL ALLOY R-405 OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 STYLE
POINT STYLEFLAT
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH ACROSS FLATS0.125 INCHES NOMINAL


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