5305-00-054-4324 SCREW,MACHINE Index 3040-00-054-4345 SHAFT,SHOULDERED

National Stock Number:
5305-00-054-4339

Federal Supply Class:
5305

National Item Identification Number:
000544339

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:
MS35458-1096906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
FASTENER LENGTH0.375 INCHES NOMINAL
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.306 INCHES MINIMUM AND 0.312 INCHES MAXIMUM
HEAD HEIGHT0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624,FS2340,3135,4037,4137,4140,4340,8630,8740,OR FS9440 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
MINIMUM YIELD STRENGTH140000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.190 INCHES
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 11 STYLE
WIDTH ACROSS FLATS0.156 INCHES MINIMUM AND 0.158 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.375 INCHES NOMINAL
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNF


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