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National Stock Number:
5306-00-582-6421
Federal Supply Class:
5306
National Item Identification Number:
005826421
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:
| G155H8-34 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND | | FASTENER LENGTH | 3.594 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | THREAD LENGTH | 0.781 INCHES MINIMUM | | HEAD STYLE | HEXAGON | | THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3A | | SURFACE TREATMENT | CADMIUM OVERALL | | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND | | 39.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.281 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.750 INCHES NOMINAL | | GRIP LENGTH | 2.812 INCHES NOMINAL | | DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 3.422 INCHES NOMINAL FIRST HOLE | | SHANK UNTHREADED HOLE DIAMETER | 0.106 INCHES NOMINAL FIRST HOLE | | FEATURES PROVIDED | FINISHED HEAD | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 26512 | | DESIGN CONTROL REFERENCE | G155H8-34 |
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