5305-00-838-9396, SCREW,CAP,HEXAGON HEAD

National Stock Number:
5305-00-838-9396

Federal Supply Class:
5305

National Item Identification Number:
008389396

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:

FF-S-85	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
FFS85	81348	FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

DEPARTURE FROM CITED DESIGNATOR	AS MODIFIED BY MATERIAL AND CLASS OF THREAD
FASTENER LENGTH	2.000 INCHES NOMINAL
HARDNESS RATING	23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL	STEEL COMP 1020 OVERALL
MINIMUM YIELD STRENGTH	85000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH	120000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.500 INCHES
NONDEFINITIVE SPEC/STD DATA	2 TYPE AND 10P STYLE
PART NAME ASSIGNED BY CONTROLLING AGENCY	SCREW,CAP,HEXAGON HEAD
WIDTH BETWEEN FLATS	0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	3A
THREAD LENGTH	1.250 INCHES MINIMUM AND 1.440 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	13

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