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National Stock Number:
5306-00-174-1640
Federal Supply Class:
5306
National Item Identification Number:
001741640
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:
| 651009 | 77445 | RTX CORPORATION |
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Techincal Specification:
| MATERIAL | MAGNESIUM OVERALL | | THREAD LENGTH | 0.406 INCHES NOMINAL | | HEAD STYLE | HEXAGON EXTENDED WASHER | | THREAD SERIES DESIGNATOR | UNEF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 32 | | THREAD CLASS | 3A | | SURFACE TREATMENT | PASSIVATE OVERALL | | HEAD HEIGHT | 0.094 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.406 INCHES NOMINAL | | EXTENDED WASHER DIAMETER | 0.531 INCHES NOMINAL | | EXTENDED WASHER THICKNESS | 0.031 INCHES NOMINAL | | GRIP LENGTH | 0.344 INCHES NOMINAL | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 0.281 INCHES NOMINAL FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.078 INCHES NOMINAL FIRST HOLE | | FEATURES PROVIDED | UNFINISHED HEAD | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 77445 | | DESIGN CONTROL REFERENCE | 651009 | | THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 0.406 INCHES NOMINAL |
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