5306-00-616-2979, BOLT,MACHINE

National Stock Number:
5306-00-616-2979

Federal Supply Class:
5306

National Item Identification Number:
006162979

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:

6784643	24617	GENERAL MOTORS CORP
6784643	63005	ROLLS-ROYCE CORPORATION
6784643	73342	ALLISON TRANSMISSION INC

Techincal Specification:

EXTENDED WASHER DIAMETER	0.438 INCHES NOMINAL
EXTENDED WASHER THICKNESS	0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM
FASTENER LENGTH	0.563 INCHES NOMINAL
FEATURES PROVIDED	FINISHED HEAD
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.330 INCHES NOMINAL
HEAD STYLE	DOUBLE HEXAGON W/HOLE
HOLE CONFIGURATION STYLE	DOUBLE HEXAGON LONGITUDINAL HOLE
HOLE DIAMETER	0.070 INCHES NOMINAL
HOLE QUANTITY	6
HOLE TYPE	DRILLED
MATERIAL DOCUMENT AND CLASSIFICATION	EMS 8500 FSCM 73342 MFR REF SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES
PRECIOUS MATERIAL AND LOCATION	OVERALL SILVER
PRECIOUS MATERIAL	SILVER
WIDTH BETWEEN FLATS	0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM
SURFACE FINISH	63.0 MICROINCHES OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	SILVER OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.563 INCHES MAXIMUM
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNF

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