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:

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

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