5306-00-448-7500, BOLT,MACHINE

National Stock Number:
5306-00-448-7500

Federal Supply Class:
5306

National Item Identification Number:
004487500

Description:
BOLT,MACHINE

Detail:
An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, BOLT, SHEAR. See also SCREW, CAP, HEXAGON HEAD and SCREW, MACHINE.

Manufacturer Information:

443997	56878	SPS TECHNOLOGIES, LLC
443997	77445	RTX CORPORATION
443997	92215	HOWMET GLOBAL FASTENING SYSTEMS INC
443997	93907	TEXTRON FASTENING SYSTEMS DBA DECORAH OPERATIONS TFS

Techincal Specification:

EXTENDED WASHER DIAMETER	0.340 INCHES MINIMUM AND 0.345 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM
FASTENER LENGTH	0.415 INCHES MINIMUM AND 0.435 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
HARDNESS RATING	24.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.485 INCHES MINIMUM AND 0.525 INCHES MAXIMUM
HEAD STYLE	HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS7478 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	IRON ALLOY 660 OVERALL
MINIMUM YIELD STRENGTH	85000 POUNDS PER SQUARE INCH
MINIMUM TENSILE STRENGTH	130000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.190 INCHES
NONSTANDARD THREAD PITCH DIAMETER	+0.1644 TO 0.1667 INCHES
PRECIOUS MATERIAL	SILVER
SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	SILVER OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.353 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNS
THREAD QUANTITY PER INCH	32
WIDTH BETWEEN FLATS	0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM

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