5306-01-622-5241, BOLT,MACHINE

National Stock Number:
5306-01-622-5241

Federal Supply Class:
5306

National Item Identification Number:
016225241

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:

BACB30LE4DK20

81205

THE BOEING COMPANY

Techincal Specification:

EXTENDED WASHER DIAMETER	0.465 INCHES MINIMUM AND 0.475 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.032 INCHES MINIMUM AND 0.052 INCHES MAXIMUM
FASTENER LENGTH	1.735 INCHES MINIMUM AND 1.765 INCHES MAXIMUM
GRIP LENGTH	1.25 INCHES NOMINAL
HEAD HEIGHT	0.225 INCHES MINIMUM AND 0.245 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON W/HOLE
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD DIAMETER	0.2500 INCHES
SHANK UNTHREADED HOLE DIAMETER	0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM ALL HOLES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	BMS10-85, TYPE 1, CLASS A OR B MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ALUMINUM OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.500 INCHES NOMINAL
THREAD QUANTITY PER INCH	28
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)
WIDTH BETWEEN FLATS	0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM

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