5305-01-059-1925 SCREW,CAP,SOCKET HEAD Index 5305-01-059-1927 SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-059-1926

Federal Supply Class:
5305

National Item Identification Number:
010591926

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:
BACB30EF4-1081205THE BOEING COMPANY
BACB30LR4P-1006710VALLEY-TODECO, INC.
BACB30LR4P-1006725SPS TECHNOLOGIES, LLC
BACB30LR4P-1017943FEDERAL MANUFACTURING CORP
BACB30LR4P-101RC86HOWMET GLOBAL FASTENING SYSTEMS INC
BACB30LR4P-1027624SPS TECHNOLOGIES LLC
BACB30LR4P-1056878SPS TECHNOLOGIES, LLC
BACB30LR4P-1081205THE BOEING COMPANY


Techincal Specification:
COUNTERSINK ANGLE100.0 DEGREES NOMINAL
FASTENER LENGTH1.078 INCHES MINIMUM AND 1.123 INCHES MAXIMUM
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER0.454 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
LOCKING FEATUREPELLET OR STRIP THREADS
MATERIALSTEEL COMP 8630 OR STEEL COMP 4037 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.250 INCHES
SPECIFICATION/STANDARD DATA81205-BACB30EF MANUFACTURERS STANDARD
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.438 INCHES MINIMUM AND 0.513 INCHES MAXIMUM
THREAD QUANTITY PER INCH28
THREAD SERIES DESIGNATORUNF


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