5306-01-242-1780 BOLT,MACHINE Index 5305-01-242-1782 SCREW,TAPPING

National Stock Number:
5305-01-242-1781

Federal Supply Class:
5305

National Item Identification Number:
012421781

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:
NAS1189E06P6H80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
FASTENER LENGTH0.344 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD DIAMETER0.182 INCHES MAXIMUM
HEAD STYLEFLAT COUNTERSUNK
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
LOCKING FEATUREPATCH OR PELLET OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALIRON ALLOY 660 OVERALL
MINIMUM TENSILE STRENGTH160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.138 INCHES
SPECIFICATION/STANDARD DATA80205-NAS1189 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE FINISH32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH32.0 MICROINCHES GRIP
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS3A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.225 INCHES MINIMUM AND 0.318 INCHES MAXIMUM
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNJC


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