5306-01-311-2749, BOLT,MACHINE

National Stock Number:
5306-01-311-2749

Federal Supply Class:
5306

National Item Identification Number:
013112749

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:

332462	04627	HYSTER-YALE GROUP, INC.
332462	30076	HYSTER-YALE GROUP, INC.
HCE-1005 CPSCR M20X2.5X30.0	30076	HYSTER-YALE GROUP, INC.

Techincal Specification:

CRITICALITY CODE JUSTIFICATION	FEAT
EXTERNAL THREAD TOLERANCE CLASS	6G
FASTENER LENGTH	28.5 MILLIMETERS MINIMUM AND 31.5 MILLIMETERS MAXIMUM
HARDNESS RATING	18.0 ROCKWELL C MINIMUM FASTENER AND 34.0 ROCKWELL C MAXIMUM FASTENER
HEAD HEIGHT	12.12 MILLIMETERS MINIMUM AND 12.88 MILLIMETERS MAXIMUM
HEAD STYLE	HEXAGON
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM F568 ASSN STD SINGLE MATERIAL RESPONSE FASTENER
MATERIAL	STEEL PROPERTY CLASS 8.8 FASTENER
PROPRIETARY CHARACTERISTICS	PACS
NOMINAL THREAD DIAMETER	20.0 MILLIMETERS
SPECIAL FEATURES	WEAPON SYSTEM ESSENTIAL
WIDTH BETWEEN FLATS	29.16 MILLIMETERS MINIMUM AND 30.00 MILLIMETERS MAXIMUM
SURFACE TREATMENT	CADMIUM FASTENER OR ZINC FASTENER
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	22.9 MILLIMETERS MINIMUM
THREAD SERIES DESIGNATOR	M
THREAD PITCH IN MILLIMETERS	2.5

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