5305-01-399-0163, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-399-0163

Federal Supply Class:
5305

National Item Identification Number:
013990163

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:

MS51480-06

96906

MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
HEAD DIAMETER	0.550 INCHES MINIMUM AND 0.563 INCHES MAXIMUM
HEAD HEIGHT	0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A574 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
WIDTH ACROSS FLATS	0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633, TYPE 2, CLASS FE/ZN 5 ASSN STD ALL TREATMENT RESPONSES OVERALL
SURFACE TREATMENT	ZINC AND CHROMATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.917 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	24

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