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National Stock Number:
5306-00-426-6972
Federal Supply Class:
5306
National Item Identification Number:
004266972
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:
| R27 | 35311 | AMERICAN STANDARD INC WESTINGHOUSE AIR BRAKE CO DIV |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 3.750 INCHES NOMINAL | | MATERIAL | STEEL COMP 1045 OVERALL | | THREAD LENGTH | 1.375 INCHES MINIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNS | | NOMINAL THREAD DIAMETER | 1.000 INCHES | | THREAD QUANTITY PER INCH | 14 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 20.0 ROCKWELL C MINIMUM AND | | 25.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.344 INCHES MINIMUM AND | | 0.375 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 1.312 INCHES NOMINAL | | FEATURES PROVIDED | UNFINISHED HEAD |
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