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National Stock Number:
5306-00-391-8032
Federal Supply Class:
5306
National Item Identification Number:
003918032
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:
| NTB254 | 24047 | COOPER INDUSTRIES INC DBA COOPER TOOLS | | NTB254 | 6X081 | COOPER INDUSTRIES INDUSTRIAL MACHINERY DIV |
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Techincal Specification:
| DISTANCE FROM CENTERLINE TO FLAT | 0.500 INCHES NOMINAL | | FASTENER LENGTH | 3.500 INCHES NOMINAL | | FEATURES PROVIDED | UNFINISHED HEAD | | GRIP LENGTH | 2.500 INCHES NOMINAL | | HEAD DIAMETER | 1.250 INCHES NOMINAL | | HEAD HEIGHT | 0.469 INCHES NOMINAL | | HEAD STYLE | DEE CHAMFER | | MATERIAL | MAGNESIUM OVERALL | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | NONSTANDARD THREAD PITCH DIAMETER | +0.5859 TO 0.5889 INCHES | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.000 INCHES NOMINAL | | THREAD SERIES DESIGNATOR | UNF | | THREAD QUANTITY PER INCH | 18 |
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