5306-01-097-5840, BOLT,MACHINE

National Stock Number:
5306-01-097-5840

Federal Supply Class:
5306

National Item Identification Number:
010975840

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:

MIL-DTL-18240	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS21095-6012	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	1.376 INCHES MINIMUM AND 1.422 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
GRIP LENGTH	0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM
HARDNESS RATING	26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.203 INCHES MINIMUM AND 0.235 INCHES MAXIMUM
HEAD STYLE	HEXAGON
LOCKING FEATURE	PATCH OR PELLET OR STRIP THREADS
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-18732 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL	STEEL COMP 431 OVERALL
MINIMUM TENSILE STRENGTH	140000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.375 INCHES
WIDTH BETWEEN FLATS	0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	0.631 INCHES MINIMUM AND 0.682 INCHES MAXIMUM
THREAD QUANTITY PER INCH	24
THREAD SERIES DESIGNATOR	UNF

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