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National Stock Number:
5306-00-251-2181
Federal Supply Class:
5306
National Item Identification Number:
002512181
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:
| 4X181C1 | 98296 | STANDARD MFG CO INC |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.625 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 3A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.656 INCHES MINIMUM AND | | 0.718 INCHES MAXIMUM | | FASTENER LENGTH | 1.094 INCHES MINIMUM AND | | 1.156 INCHES MAXIMUM | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND | | 34.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | SQUARE | | HEAD HEIGHT | 0.155 INCHES MINIMUM AND | | 0.160 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 1.094 INCHES MINIMUM AND | | 1.156 INCHES MAXIMUM | | EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 2 | | FIRST DIAMETER FROM HEAD | 0.620 INCHES MINIMUM AND | | 0.625 INCHES MAXIMUM | | SECOND DIAMETER FROM HEAD | 0.499 INCHES MINIMUM AND | | 0.501 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.219 INCHES MINIMUM AND | | 0.281 INCHES MAXIMUM | | DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.313 INCHES MINIMUM AND | | 0.385 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 98296 | | DESIGN CONTROL REFERENCE | 4X181C1 |
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