5305-01-160-0557, SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-01-160-0557

Federal Supply Class:
5305

National Item Identification Number:
011600557

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:

SM-C-807952	26772	WEGO PRECISION MACHINE, INC.
SM-C-807952	80063	US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR
SM-C-807952	89944	ELBITAMERICA, INC.

Techincal Specification:

THREAD SERIES DESIGNATOR	UNC
THREAD LENGTH	1.250 INCHES NOMINAL
FASTENER LENGTH	1.438 INCHES MINIMUM AND
	1.500 INCHES MAXIMUM
MATERIAL	STEEL COMP 301 OVERALL
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD DIAMETER	0.500 INCHES
THREAD QUANTITY PER INCH	13
THREAD CLASS	2A
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT	PAINT OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	13924 MIL SPEC ALL TREATMENT RESPONSES OVERALL
HARDNESS RATING	80.0 ROCKWELL B NOMINAL OVERALL
MINIMUM TENSILE STRENGTH	11300 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.302 INCHES MINIMUM AND
	0.323 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.736 INCHES MINIMUM AND
	0.750 INCHES MAXIMUM
THE MANUFACTURERS DATA
MANUFACTURERS CODE	80063
DESIGN CONTROL REFERENCE	SM-C-807952

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