5305-01-611-3888, SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-611-3888

Federal Supply Class:
5305

National Item Identification Number:
016113888

Description:
SCREW,CAP,HEXAGON HEAD

Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.

Manufacturer Information:

AES01C375A50AW99B1	05047	THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
G1921BH038C150N	01417	GENERAL DYNAMICS LAND SYSTEMS INC.
G1921M	01417	GENERAL DYNAMICS LAND SYSTEMS INC.

Techincal Specification:

EXTERNAL THREAD TOLERANCE CLASS	2A
FASTENER LENGTH	1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM
HARDNESS RATING	33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	SAE J429 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A354 STEEL GRADE 8 OR GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCY	SCREW, CAP, HEXAGON HEAD
PROPRIETARY CHARACTERISTICS	PACS
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	130000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
WIDTH BETWEEN FLATS	0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 TYPE III OR V, FE/ZN5 ASSN STD SINGLE TREATMENT RESPONSE OR ASTM F1941M TYPE FE/ZN5AT OR FE/ZN5BT ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ZINC AND CHROMATE OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.000 INCHES MINIMUM AND 1.188 INCHES MAXIMUM
THREAD QUANTITY PER INCH	16
THREAD SERIES DESIGNATOR	UNC

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