5305-00-258-8309, SCREW,CAP,SOCKET HEAD

National Stock Number:
5305-00-258-8309

Federal Supply Class:
5305

National Item Identification Number:
002588309

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:

11626507-2

19207

U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

Techincal Specification:

FASTENER LENGTH	1.500 INCHES NOMINAL
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD DIAMETER	0.987 INCHES MINIMUM AND 1.000 INCHES MAXIMUM
HEAD HEIGHT	0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
HEAD STYLE	FLAT CHAMFER
INTERNAL DRIVE STYLE	HEXAGON
LOCKING FEATURE	PATCH OR PELLET OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL
WIDTH ACROSS FLATS	0.563 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 TY 2 CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OR ZINC OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.190 INCHES MINIMUM AND 1.310 INCHES MAXIMUM
THREAD QUANTITY PER INCH	16
THREAD SERIES DESIGNATOR	UNF

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