5305-00-436-4660, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-436-4660

Federal Supply Class:
5305

National Item Identification Number:
004364660

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:

ASAB18-3-1961	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED
FFS86	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.138 INCHES
THREAD QUANTITY PER INCH	32
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.172 INCHES MINIMUM AND
	0.266 INCHES MAXIMUM
FASTENER LENGTH	0.234 INCHES MINIMUM AND
	0.266 INCHES MAXIMUM
MATERIAL	STEEL COMP 302 OR
	STEEL COMP 303 OR
	STEEL COMP 304 OR
	STEEL COMP 305 OR
	STEEL COMP 316 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	80.0 ROCKWELL B MINIMUM OVERALL
MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	30000 POUNDS PER SQUARE INCH
HEAD STYLE	BUTTON
HEAD DIAMETER	0.250 INCHES MINIMUM AND
	0.262 INCHES MAXIMUM
HEAD HEIGHT	0.063 INCHES MINIMUM AND
	0.073 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.078 INCHES NOMINAL
NONDEFINITIVE SPEC/STD DATA	8 TYPE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FFS86

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