5305-00-208-2115, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-208-2115

Federal Supply Class:
5305

National Item Identification Number:
002082115

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:

AN148667

88044

AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE

Techincal Specification:

THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	28
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.740 INCHES MINIMUM AND
	0.820 INCHES MAXIMUM
FASTENER LENGTH	1.178 INCHES MINIMUM AND
	1.198 INCHES MAXIMUM
MATERIAL	STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND
	32.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	125000 POUNDS PER SQUARE INCH
HEAD STYLE	FLAT CHAMFER
HEAD DIAMETER	0.428 INCHES MINIMUM AND
	0.448 INCHES MAXIMUM
HEAD HEIGHT	0.240 INCHES MINIMUM AND
	0.260 INCHES MAXIMUM
INTERNAL DRIVE STYLE	HEXAGON
WIDTH ACROSS FLATS	0.070 INCHES MINIMUM AND
	0.219 INCHES MAXIMUM
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
	63.0 MICROINCHES GRIP
	32.0 MICROINCHES THREADS
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	AN148667

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