5306-01-471-4492 BOLT,INTERNAL WRENCHING Index 5306-01-471-4494 BOLT,MACHINE

National Stock Number:
5306-01-471-4493

Federal Supply Class:
5306

National Item Identification Number:
014714493

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:
8T-491011083CATERPILLAR INC
8T-4910U8468FINNING UK LTD
8T-4910Z0939CATERPILLAR OF AUSTRALIA PTY LTD


Techincal Specification:
FASTENER LENGTH60.000 MILLIMETERS NOMINAL
GRIP LENGTH30.000 MILLIMETERS NOMINAL
HEAD HEIGHT8.000 MILLIMETERS NOMINAL
HEAD STYLEHEXAGON
NOMINAL THREAD DIAMETER12.000 MILLIMETERS
THREAD LENGTH30.000 MILLIMETERS NOMINAL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
WIDTH BETWEEN FLATS18.000 MILLIMETERS NOMINAL


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