5306-00-206-5223, BOLT,MACHINE

National Stock Number:
5306-00-206-5223

Federal Supply Class:
5306

National Item Identification Number:
002065223

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:

FF-S-85

81348

FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	1.844 INCHES MINIMUM AND
	1.875 INCHES MAXIMUM
MATERIAL	STEEL OVERALL
THREAD LENGTH	0.875 INCHES MINIMUM
HEAD STYLE	HEXAGON
THREAD SERIES DESIGNATOR	UNF
NOMINAL THREAD DIAMETER	0.375 INCHES
THREAD QUANTITY PER INCH	24
THREAD CLASS	2A
MATERIAL DOCUMENT AND CLASSIFICATION	SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	100.0 ROCKWELL B MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	69000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.226 INCHES MINIMUM AND
	0.243 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.544 INCHES MINIMUM AND
	0.562 INCHES MAXIMUM
GRIP LENGTH	0.969 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.750 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.094 INCHES NOMINAL FIRST HOLE
FEATURES PROVIDED	FINISHED HEAD
NONDEFINITIVE SPEC/STD DATA	2 TYPE AND
	10P STYLE AND
	2 GRADE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE	81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	FF-S-85

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