5306-00-298-2997, BOLT,MACHINE

National Stock Number:
5306-00-298-2997

Federal Supply Class:
5306

National Item Identification Number:
002982997

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:

252773

77445

RTX CORPORATION

Techincal Specification:

EXTENDED WASHER DIAMETER	0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM
FASTENER LENGTH	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.272 INCHES MINIMUM AND 0.292 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
NONSTANDARD THREAD PITCH DIAMETER	+0.2213 TO 0.2238 INCHES
PRECIOUS MATERIAL	SILVER
SPECIAL FEATURES	FOUR DRILLED HOLES
SURFACE TREATMENT	SILVER THREADS
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNF
THREAD QUANTITY PER INCH	28
WIDTH BETWEEN FLATS	0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM

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