5306-01-038-6365, BOLT,MACHINE

National Stock Number:
5306-01-038-6365

Federal Supply Class:
5306

National Item Identification Number:
010386365

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:

274473	11862	GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT
274473	24617	GENERAL MOTORS CORP
274473	7X677	GENERAL MOTORS LLC

Techincal Specification:

EXTENDED WASHER DIAMETER	0.513 INCHES MINIMUM AND 0.531 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.048 INCHES MINIMUM AND 0.066 INCHES MAXIMUM
FASTENER LENGTH	0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
HARDNESS RATING	22.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.204 INCHES MINIMUM AND 0.222 INCHES MAXIMUM
HEAD STYLE	HEXAGON EXTENDED WASHER
LOCKING FEATURE	LOCKING TEETH BEARING SURFACE OF HEAD
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 1018 OR STEEL COMP 1021 OR STEEL COMP 1022 OVERALL
MINIMUM TENSILE STRENGTH	115000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.250 INCHES
WIDTH BETWEEN FLATS	0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	GM 4342-M FSCM 89955 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	ZINC OVERALL
THREAD CLASS	2A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.495 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNC

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