5306-01-300-6265, BOLT,MACHINE

National Stock Number:
5306-01-300-6265

Federal Supply Class:
5306

National Item Identification Number:
013006265

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:

12485434-094	19207	U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
B18231B08030N	80204	AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	29.60 MILLIMETERS MINIMUM AND
	30.40 MILLIMETERS MAXIMUM
MATERIAL	STEEL PROPERTY CLASS 10.9 OVERALL
THREAD LENGTH	27.1 MILLIMETERS MINIMUM AND
	30.4 MILLIMETERS MAXIMUM
HEAD STYLE	HEXAGON
THREAD SERIES DESIGNATOR	M
NOMINAL THREAD DIAMETER	8.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS	1.25
EXTERNAL THREAD TOLERANCE CLASS	6G
MATERIAL DOCUMENT AND CLASSIFICATION	ANSI B18.2.3.1M,PROPERTY CL 10.9 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT	ZINC AND
	CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING	33.0 ROCKWELL C MINIMUM AND
	39.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	1040 MEGAPASCALS
MINIMUM YIELD STRENGTH	940 MEGAPASCALS
HEAD HEIGHT	5.1 MILLIMETERS MINIMUM AND
	5.5 MILLIMETERS MAXIMUM
WIDTH BETWEEN FLATS	12.7 MILLIMETERS MINIMUM AND
	13.0 MILLIMETERS MAXIMUM
FEATURES PROVIDED	FINISHED HEAD

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