5305-00-531-1772, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-531-1772

Federal Supply Class:
5305

National Item Identification Number:
005311772

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:

12Z1037-76

94135

NAVAL ORDNANCE STANDARDS

Techincal Specification:

FASTENER LENGTH	0.594 INCHES MINIMUM AND 0.641 INCHES MAXIMUM
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.178 INCHES MINIMUM AND 0.183 INCHES MAXIMUM
HEAD HEIGHT	0.109 INCHES MINIMUM AND 0.112 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-764 FED SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 304 OR STEEL COMP 303 OVERALL
NOMINAL THREAD DIAMETER	0.112 INCHES
SURFACE TREATMENT	PASSIVATE AND OXIDE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.544 INCHES MINIMUM AND 0.641 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH	40
WIDTH ACROSS FLATS	0.078 INCHES MINIMUM AND 0.079 INCHES MAXIMUM

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