5305-01-449-4459, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-449-4459

Federal Supply Class:
5305

National Item Identification Number:
014494459

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:

12933704

19200

US ARMY ARDEC RDECOM

Techincal Specification:

FASTENER LENGTH	1.960 INCHES MINIMUM AND 2.000 INCHES MAXIMUM
HEAD DIAMETER	0.550 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
HEAD HEIGHT	0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD STYLE	FLAT FILLISTER
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A574 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	0.375 INCHES
NONSTANDARD THREAD PITCH DIAMETER	+0.3299 TO 0.3344 INCHES
WIDTH ACROSS FLATS	0.3125 INCHES MINIMUM AND 0.3160 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633,EMBRITTLEMENT RELIEVE AFTER PLATING ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ZINC OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.862 INCHES MINIMUM AND 1.888 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH	16

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