5306-00-208-8571 SCREW Index 1560-00-208-8579 FITTING,CONTROL SUPPORT

National Stock Number:
5305-00-208-8576

Federal Supply Class:
5305

National Item Identification Number:
002088576

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:
18899106848HONEYWELL INTERNATIONAL INC


Techincal Specification:
FASTENER LENGTH0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM
HARDNESS RATING35.0 ROCKWELL C NOMINAL OVERALL
HEAD DIAMETER0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM
HEAD HEIGHT0.303 INCHES MINIMUM AND 0.323 INCHES MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL COMP 416SE OR STEEL COMP 303 OR STEEL COMP 303 PLUS X OVERALL
MINIMUM TENSILE STRENGTH155000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SURFACE FINISH40.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE TREATMENTPASSIVATE OVERALL
THREAD LENGTH0.212 INCHES MINIMUM AND 0.232 INCHES MAXIMUM
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD SERIES DESIGNATORUNF
THREAD QUANTITY PER INCH28
WIDTH ACROSS FLATS0.218 INCHES MINIMUM AND 0.220 INCHES MAXIMUM


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