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National Stock Number:
5306-00-378-9920
Federal Supply Class:
5306
National Item Identification Number:
003789920
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:
| 128N | 80914 | HENDRIX MFG CO INC | | 128N3-4 | 40152 | VME AMERICAS INC SUB OF VME GROUP N V | | 128N3-4 | 80914 | HENDRIX MFG CO INC |
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.500 INCHES NOMINAL FIRST HOLE | | FASTENER LENGTH | 4.000 INCHES NOMINAL | | FEATURES PROVIDED | UNFINISHED HEAD | | HEAD HEIGHT | 0.375 INCHES NOMINAL | | HEAD STYLE | SQUARE | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 1.375 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.375 INCHES MINIMUM AND 0.500 INCHES MAXIMUM FIRST HOLE | | WIDTH BETWEEN FLATS | 1.500 INCHES NOMINAL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.375 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 8 | | THREAD SERIES DESIGNATOR | UN |
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