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National Stock Number:
5306-01-175-0485
Federal Supply Class:
5306
National Item Identification Number:
011750485
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:
| 29-00171 | 81412 | TREADWELL CORPORATION (DELAWARE) |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 7.500 INCHES NOMINAL | | MATERIAL | STEEL COMP 1042 OVERALL | | THREAD LENGTH | 4.875 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | THREAD QUANTITY PER INCH | 13 | | THREAD CLASS | 3A | | HEAD HEIGHT | 0.625 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 1.000 INCHES NOMINAL | | SURFACE FINISH | 63.0 MICROINCHES OVERALL | | FEATURES PROVIDED | FINISHED HEAD | | SPECIAL FEATURES | UNDERCUT BENEATH BEARING SURFACE OF HEAD DIA 0.475 INCHES,WIDTH 0.031 INCHES,AT A DISTANCE OF 1.724 INCHES FROM BEARING SURFACE ITEM IS GROOVED 0.219 INCHES WIDE BY 0.031 TO 0.036 INCHES IN DEPTH,BETWEEN THESE TWO POINTS THE DIA HAS BEEN MACHINED TO A DIA OF 0.490 TO 0.495 INCHES |
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