5305-01-384-3488, SCREW,CAP,SOCKET HEAD

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 831DH040020N	D9182	ZF INDUSTRIEANTRIEBE WITTEN GMBH
B1831DH040020N	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED

Techincal Specification:

THREAD SERIES DESIGNATOR	M
NOMINAL THREAD DIAMETER	4.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS	0.7
EXTERNAL THREAD TOLERANCE CLASS	6G
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	20.0 MILLIMETERS MINIMUM AND
	23.5 MILLIMETERS MAXIMUM
FASTENER LENGTH	16.0 MILLIMETERS MINIMUM AND
	24.0 MILLIMETERS MAXIMUM
MATERIAL	STEEL CORROSION RESISTING OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	6.8 MILLIMETERS MINIMUM AND
	7.0 MILLIMETERS MAXIMUM
HEAD HEIGHT	3.88 MILLIMETERS MINIMUM AND
	4.00 MILLIMETERS MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	3.0 MILLIMETERS NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT

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