5306-00-804-4320, BOLT,MACHINE

National Stock Number:
5306-00-804-4320

Federal Supply Class:
5306

National Item Identification Number:
008044320

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:

AN102110

88044

AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.765 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH	0.875 INCHES NOMINAL
FEATURES PROVIDED	FINISHED HEAD
GRIP LENGTH	0.188 INCHES NOMINAL
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.188 INCHES NOMINAL
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 8740 OVERALL
NOMINAL THREAD DIAMETER	0.312 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.065 INCHES MINIMUM AND 0.072 INCHES MAXIMUM ALL HOLES
WIDTH BETWEEN FLATS	0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES THREADS
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	63.0 MICROINCHES GRIP
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.687 INCHES MINIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF

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