5306-00-550-1740, BOLT,MACHINE

National Stock Number:
5306-00-550-1740

Federal Supply Class:
5306

National Item Identification Number:
005501740

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:

A73719

58275

SASCO INC CANADIAN DIV

Techincal Specification:

THREAD DIRECTION	RIGHT-HAND
FASTENER LENGTH	1.078 INCHES NOMINAL
MATERIAL	STEEL OVERALL
THREAD LENGTH	0.750 INCHES MINIMUM
HEAD STYLE	HEXAGON
THREAD SERIES DESIGNATOR	UNC
NOMINAL THREAD DIAMETER	0.250 INCHES
THREAD QUANTITY PER INCH	20
THREAD CLASS	3A
MATERIAL DOCUMENT AND CLASSIFICATION	SAE J429,GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR
	ASTM A354,GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING	32.0 ROCKWELL C MINIMUM AND
	38.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
HEAD HEIGHT	0.156 INCHES NOMINAL
WIDTH BETWEEN FLATS	0.428 INCHES MINIMUM AND
	0.438 INCHES MAXIMUM
GRIP LENGTH	0.328 INCHES NOMINAL
DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	0.953 INCHES NOMINAL FIRST HOLE
SHANK UNTHREADED HOLE DIAMETER	0.078 INCHES NOMINAL FIRST HOLE
FEATURES PROVIDED	FINISHED HEAD
DEPARTURE FROM CITED DOCUMENT	AS MOD BY NO. 12
NONDEFINITIVE SPEC/STD DATA	2 TYPE AND
	10P STYLE AND
	8 GRADE

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