5305-01-384-3487 SCREW,TAPPING Index 5330-01-384-3489 GASKET

National Stock Number:
5305-01-384-3488

Federal Supply Class:
5305

National Item Identification Number:
013843488

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:
ANSI B18.3.1MB1 831DH040020ND9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
B1831DH040020N80204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED


Techincal Specification:
EXTERNAL THREAD TOLERANCE CLASS6G
FASTENER LENGTH16.0 MILLIMETERS MINIMUM AND 24.0 MILLIMETERS MAXIMUM
HEAD DIAMETER6.8 MILLIMETERS MINIMUM AND 7.0 MILLIMETERS MAXIMUM
HEAD HEIGHT3.88 MILLIMETERS MINIMUM AND 4.00 MILLIMETERS MAXIMUM
HEAD STYLEFLAT CHAMFER
INTERNAL DRIVE STYLEHEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER4.0 MILLIMETERS
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
WIDTH ACROSS FLATS3.0 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH20.0 MILLIMETERS MINIMUM AND 23.5 MILLIMETERS MAXIMUM
THREAD SERIES DESIGNATORM
THREAD PITCH IN MILLIMETERS0.7


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