5306-01-083-6441, BOLT,MACHINE

National Stock Number:
5306-01-083-6441

Federal Supply Class:
5306

National Item Identification Number:
010836441

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:

MS35764	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS35764-259	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	3.420 INCHES MINIMUM AND 3.500 INCHES MAXIMUM
FEATURES PROVIDED	FINISHED HEAD
GRIP LENGTH	1.911 INCHES MINIMUM AND 2.375 INCHES MAXIMUM
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM
HEAD STYLE	HEXAGON
LOCKING FEATURE	DISTORTIONS TOP OF HEAD
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.438 INCHES
WIDTH BETWEEN FLATS	0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-P-16232 TYZ CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENT	PHOSPHATE ZINC OVERALL
THREAD DIRECTION	RIGHT-HAND
THREAD CLASS	2A
THREAD LENGTH	1.045 INCHES MINIMUM AND 1.589 INCHES MAXIMUM
THREAD SERIES DESIGNATOR	UNC
THREAD QUANTITY PER INCH	14

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