5306-01-138-6285, BOLT,MACHINE

National Stock Number:
5306-01-138-6285

Federal Supply Class:
5306

National Item Identification Number:
011386285

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:

MS9521-49

96906

MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	5.115 INCHES MINIMUM AND 5.115 INCHES MINIMUM AND 5.135 INCHES MAXIMUM5.135 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEADFINISHED HEAD
GRIP LENGTH	4.065 INCHES MINIMUM AND 4.065 INCHES MINIMUM AND 4.125 INCHES MAXIMUM4.125 INCHES MAXIMUM
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.209 INCHES MINIMUM AND 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM0.229 INCHES MAXIMUM
HEAD STYLE	HEXAGONHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 8740 OVERALL
MINIMUM TENSILE STRENGTH	125000 POUNDS PER SQUARE INCH125000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES0.375 INCHES
WIDTH BETWEEN FLATS	0.553 INCHES MINIMUM AND 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM0.564 INCHES MAXIMUM
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES BEARING SURFACE OF HEAD
SURFACE FINISH	32.0 MICROINCHES GRIP32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES THREADS32.0 MICROINCHES THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALLAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	CADMIUM OVERALLCADMIUM OVERALL
THREAD CLASS	3A3A
THREAD DIRECTION	RIGHT-HANDRIGHT-HAND
THREAD LENGTH	0.990 INCHES MINIMUM AND 0.990 INCHES MINIMUM AND 1.070 INCHES MAXIMUM1.070 INCHES MAXIMUM
THREAD QUANTITY PER INCH	2424
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL JOINT FINE (UNJF)UNIFIED NATIONAL JOINT FINE (UNJF)

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