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National Stock Number:
5306-00-226-0031
Federal Supply Class:
5306
National Item Identification Number:
002260031
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:
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Techincal Specification:
| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 4.000 INCHES NOMINAL FIRST HOLE | | ASKEWED HEAD ANGLE | 45.0 DEGREES NOMINAL | | FASTENER LENGTH | 4.160 INCHES NOMINAL | | FEATURES PROVIDED | FINISHED HEAD | | GRIP LENGTH | 3.180 INCHES NOMINAL | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM OVERALL AND 36.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.380 INCHES NOMINAL | | HEAD STYLE | ROUND W/WRENCH FLATS CHAMFERED | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 8640H OVERALL | | PROPRIETARY CHARACTERISTICS | PACS | | MINIMUM TENSILE STRENGTH | 154000 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | SHANK UNTHREADED HOLE DIAMETER | 0.094 INCHES NOMINAL FIRST HOLE | | WIDTH BETWEEN FLATS | 0.740 INCHES NOMINAL | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.720 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES DESIGNATOR | UNF |
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