5305-01-276-1625 SCREW,CAP,SOCKET HEAD Index 5305-01-276-1629 THUMBSCREW

National Stock Number:
5305-01-276-1626

Federal Supply Class:
5305

National Item Identification Number:
012761626

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:
3176207-C-32510001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
FASTENER LENGTH4.000 INCHES NOMINAL
HARDNESS RATING80.0 ROCKWELL B MINIMUM FASTENER
HEAD DIAMETER0.921 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
HEAD HEIGHT0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
LOCKING FEATUREPATCH THREADS
MATERIALSTEEL FASTENER
MINIMUM YIELD STRENGTH30000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH80000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.625 INCHES
WIDTH ACROSS FLATS0.500 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633 ASSN STD SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENTZINC FASTENER
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A
THREAD LENGTH3.818 INCHES MINIMUM AND 4.000 INCHES MAXIMUM
THREAD SERIES DESIGNATORUNC
THREAD QUANTITY PER INCH11


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