5306-00-423-8246, BOLT,MACHINE

National Stock Number:
5306-00-423-8246

Federal Supply Class:
5306

National Item Identification Number:
004238246

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:

1A4864	11083	CATERPILLAR INC
MIL-DTL-1222	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-S-1222	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

Techincal Specification:

FASTENER LENGTH	3.750 INCHES NOMINAL
FEATURES PROVIDED	UNFINISHED HEAD
HARDNESS RATING	32.0 ROCKWELL C MINIMUM OVERALL AND 38.0 ROCKWELL C MAXIMUM OVERALL
HEAD HEIGHT	0.549 INCHES MINIMUM AND 0.576 INCHES MAXIMUM
HEAD STYLE	HEXAGON
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIAL	STEEL COMP 1050 OVERALL OR STEEL COMP 1552 OVERALL OR STEEL COMP 1053 OVERALL
PROPRIETARY CHARACTERISTICS	PACS
MINIMUM TENSILE STRENGTH	150000 POUNDS PER SQUARE INCH
MINIMUM YIELD STRENGTH	145000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER	0.750 INCHES
NONDEFINITIVE SPEC/STD DATA	1 TYPE AND 8 GRADE
WIDTH BETWEEN FLATS	1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
THREAD LENGTH	1.203 INCHES MINIMUM
THREAD QUANTITY PER INCH	10
THREAD SERIES DESIGNATOR	UNC

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