5306-01-006-3858, BOLT,MACHINE

National Stock Number:
5306-01-006-3858

Federal Supply Class:
5306

National Item Identification Number:
010063858

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:

M24240/3-10710	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-S-24240/3	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	1.234 INCHES MINIMUM AND
	1.281 INCHES MAXIMUM
MATERIAL	STEEL OVERALL
THREAD LENGTH	1.091 INCHES MINIMUM AND
	1.281 INCHES MAXIMUM
HEAD STYLE	DOUBLE HEXAGON EXTENDED WASHER
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.438 INCHES
THREAD QUANTITY PER INCH	14
THREAD CLASS	3A
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	36.0 ROCKWELL C MINIMUM AND
	43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	130000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.430 INCHES MINIMUM AND
	0.438 INCHES MAXIMUM
WIDTH BETWEEN FLATS	0.432 INCHES MINIMUM AND
	0.440 INCHES MAXIMUM
EXTENDED WASHER DIAMETER	0.642 INCHES MINIMUM AND
	0.656 INCHES MAXIMUM
EXTENDED WASHER THICKNESS	0.177 INCHES MINIMUM AND
	0.197 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
SPEC/STD CONTROLLING DATA
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MIL-S-24240/3
MANUFACTURERS CODE	81349
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	M24240/3-10710

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