5306-00-579-0680, BOLT,MACHINE

5306-00-579-0682 BOLT,INTERNAL WRENCHING

National Stock Number:
5306-00-579-0680

Federal Supply Class:
5306

National Item Identification Number:
005790680

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:

AN8C21

88044

AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	2.203 INCHES MINIMUM AND
	2.250 INCHES MAXIMUM
MATERIAL	STEEL COMP 431 OVERALL
THREAD LENGTH	0.749 INCHES MINIMUM AND
	0.828 INCHES MAXIMUM
HEAD STYLE	HEXAGON
THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.500 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	3A
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-B-6812 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND
	32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.265 INCHES MINIMUM AND
	0.297 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.740 INCHES MINIMUM AND
	0.752 INCHES MAXIMUM
GRIP LENGTH	1.422 INCHES MINIMUM AND
	1.454 INCHES MAXIMUM
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.031 INCHES MINIMUM AND
	2.063 INCHES MAXIMUM FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.106 INCHES NOMINAL FIRST HOLE
FEATURES PROVIDED	FINISHED HEAD
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	88044
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	AN8C21

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