5305-01-167-4347, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-01-167-4347

Federal Supply Class:
5305

National Item Identification Number:
011674347

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:

5428533	53711	NAVAL SEA SYSTEMS COMMAND
5428533	A9271	GORIZIANE GROUP SPA

Techincal Specification:

COUNTERSINK ANGLE	80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
FASTENER LENGTH	1.875 INCHES NOMINAL
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.993 INCHES MINIMUM AND 1.063 INCHES MAXIMUM
HEAD STYLE	FLAT COUNTERSUNK
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	PATCH OR PELLET OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A331 ASSN STD 2ND MATERIAL RESPONSE FASTENER
MATERIAL	PLASTIC LOCKING FEATURE
MATERIAL	STEEL COMP 4130 OR STEEL COMP 4140 FASTENER
NOMINAL THREAD DIAMETER	0.562 INCHES
WIDTH ACROSS FLATS	0.312 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
SURFACE TREATMENT	CADMIUM AND CHROMATE FASTENER
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.421 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH	12

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