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National Stock Number:
5306-00-426-6787
Federal Supply Class:
5306
National Item Identification Number:
004266787
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.
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Manufacturer Information:
| E2564 | 35311 | AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV | | E2564-13 | 35311 | AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 8.500 INCHES NOMINAL | | MATERIAL | STEEL COMP 1561 OVERALL | | THREAD LENGTH | 2.000 INCHES MINIMUM AND | | 2.500 INCHES MAXIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UN | | NOMINAL THREAD DIAMETER | 1.750 INCHES | | THREAD QUANTITY PER INCH | 8 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND | | 40.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.750 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 2.500 INCHES NOMINAL | | GRIP LENGTH | 6.000 INCHES MINIMUM | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 8.125 INCHES NOMINAL FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.312 INCHES NOMINAL FIRST HOLE | | FEATURES PROVIDED | FINISHED HEAD | | SPECIAL FEATURES | 0.125 IN. BY 45 DEG CHAMFER ON THD END |
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