3020-00-508-2550 GEAR,HELICAL Index 5305-00-508-2553 SCREW,CAP,SOCKET HEAD

National Stock Number:
5306-00-508-2552

Federal Supply Class:
5306

National Item Identification Number:
005082552

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:
7F861911083CATERPILLAR INC


Techincal Specification:
FASTENER LENGTH2.281 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
HEAD HEIGHT0.781 INCHES NOMINAL
HEAD STYLECROWNED HEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD DIAMETER0.750 INCHES
WIDTH BETWEEN FLATS1.266 INCHES NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2A
THREAD LENGTH1.250 INCHES MINIMUM
THREAD QUANTITY PER INCH16
THREAD SERIES DESIGNATORUNF


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