5306-00-043-2170, BOLT,MACHINE

National Stock Number:
5306-00-043-2170

Federal Supply Class:
5306

National Item Identification Number:
000432170

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:

756171-109

98897

LOCKHEED MARTIN CORP

Techincal Specification:

DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	2.560 INCHES NOMINAL FIRST HOLE
FASTENER LENGTH	2.750 INCHES NOMINAL
FEATURES PROVIDED	FINISHED HEAD
GRIP LENGTH	2.088 INCHES NOMINAL
HEAD HEIGHT	0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL	STEEL OVERALL
NOMINAL THREAD DIAMETER	1.000 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE
SPECIAL FEATURES	COAT GRIP W/CORROSION PREVENTIVE COMPOUND PER MIL-C-16173 GRADE 3
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	04-2056 TYPE 1,FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE HEAD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	04-2056 TYPE 1,FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE THREADS
SURFACE TREATMENT	CADMIUM HEAD
SURFACE TREATMENT	CADMIUM THREADS
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.662 INCHES MINIMUM
THREAD QUANTITY PER INCH	12
THREAD SERIES DESIGNATOR	UNF
WIDTH BETWEEN FLATS	1.428 INCHES MINIMUM AND 1.437 INCHES MAXIMUM

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