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National Stock Number:
5306-00-206-0441
Federal Supply Class:
5306
National Item Identification Number:
002060441
Description:
BOLT,EXTERNALLY RELIEVED BODY
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is No. 10 (0.190 IN.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, INTERNAL WRENCHING and THUMBSCREW. See also SCREW, EXTERNALLY RELIEVED BODY.
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Manufacturer Information:
| 839348 | 11862 | GENERAL MOTORS CORP CHEVROLET MOTOR DIV SPECIAL PRODUCTS DEPT | | 839348 | 24617 | GENERAL MOTORS CORP | | 839348 | 7X677 | GENERAL MOTORS LLC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | NOMINAL THREAD DIAMETER | 0.500 INCHES | | THREAD QUANTITY PER INCH | 13 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.000 INCHES NOMINAL | | FASTENER LENGTH | 3.125 INCHES MINIMUM AND | | 3.187 INCHES MAXIMUM | | MATERIAL | STEEL COMP 1035 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AISI 1035 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 217.0 BRINELL STANDARD MINIMUM AND | | 285.0 BRINELL STANDARD MAXIMUM OVERALL | | HEAD STYLE | HEXAGON | | HEAD HEIGHT | 0.365 INCHES MINIMUM AND | | 0.386 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.736 INCHES MINIMUM AND | | 0.750 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FIRST DIAMETER FROM HEAD | 0.495 INCHES MINIMUM AND | | 0.510 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.443 INCHES MINIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.375 INCHES NOMINAL | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 2.125 INCHES MINIMUM AND | | 2.187 INCHES MAXIMUM | | SPECIAL FEATURES | THD END CHAMFERED 0.125 INCHES LONG BY 45.0 DEGREES |
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