5305-00-639-7866 SCREW,CAP,SOCKET HEAD Index 5305-00-639-7871 SETSCREW

National Stock Number:
5305-00-639-7867

Federal Supply Class:
5305

National Item Identification Number:
006397867

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:
AN14876681352AIR FORCE-NAVY AERONAUTICAL SPECIFICATIONS PROMULGATED BY AERONAUTICAL STANDARDS GROUP


Techincal Specification:
FASTENER LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
HEAD HEIGHT0.295 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
HOLE CONFIGURATION STYLEROUND LONGITUDINAL HOLE
HOLE DIAMETER0.070 INCHES NOMINAL
HOLE QUANTITY6
HOLE TYPEDRILLED
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER0.312 INCHES
WIDTH ACROSS FLATS0.251 INCHES MINIMUM AND 0.253 INCHES MAXIMUM
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH63.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.782 INCHES MINIMUM AND 0.945 INCHES MAXIMUM
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNF


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