5306-00-276-8170 BOLT,MACHINE Index 5306-00-276-8178 SCREW

National Stock Number:
5306-00-276-8171

Federal Supply Class:
5306

National Item Identification Number:
002768171

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:
L525-1446717PETTIBONE LLC


Techincal Specification:
FASTENER LENGTH3.500 INCHES NOMINAL
FEATURES PROVIDEDFINISHED HEAD
HARDNESS RATING95.5 ROCKWELL B MAXIMUM OVERALL
HEAD HEIGHT0.391 INCHES NOMINAL
HEAD STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A108 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1045 OVERALL
MINIMUM YIELD STRENGTH59000 POUNDS PER SQUARE INCH
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD CLASS2A
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH3.250 INCHES MINIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH11
WIDTH BETWEEN FLATS0.938 INCHES NOMINAL


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