5305-01-612-2556, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-612-2556

Federal Supply Class:
5305

National Item Identification Number:
016122556

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:

B18.3.1M-1986	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
B1831DH025005N	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED

Techincal Specification:

THREAD SERIES DESIGNATOR	M
NOMINAL THREAD DIAMETER	2.50 MILLIMETERS
THREAD PITCH IN MILLIMETERS	0.45
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	5.0 MILLIMETERS NOMINAL
FASTENER LENGTH	7.4 MILLIMETERS MINIMUM AND
	7.5 MILLIMETERS MAXIMUM
MATERIAL	STEEL CORROSION RESISTING OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	A1-70 IAW ASTM A380 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	CLEANED,DESCALED,PASSIVATED IAW ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HEAD STYLE	FLAT FILLISTER
HEAD DIAMETER	4.33 MILLIMETERS MINIMUM AND
	4.50 MILLIMETERS MAXIMUM
HEAD HEIGHT	2.40 MILLIMETERS MINIMUM AND
	2.50 MILLIMETERS MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	2.0 MILLIMETERS NOMINAL
SPECIFICATION/STANDARD DATA	80204-ASME/ANSI B18.3.1M-1986 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA	D MATERIAL AND
	H STYLE AND
	025005 SIZE
PART NAME ASSIGNED BY CONTROLLING AGENCY	METRIC SOCKET THREAD CAP SCREW

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