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National Stock Number:
5305-00-355-3914
Federal Supply Class:
5305
National Item Identification Number:
003553914
Description:
SCREW,CAP,HEXAGON HEAD
Detail:
An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, MACHINE; BOLT, EXTERNALLY RELIEVED BODY; BOLT, INTERNAL WRENCHING; and SCREW, CAP, SOCKET HEAD.
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Manufacturer Information:
| 66002D | 29930 | INTERNATIONAL HARVESTER CO AGRICULTURAL EQUIPMENT DIV | | 66002D | 31007 | NAVISTAR INTL CORP | | 66002D | 92679 | NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ |
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Techincal Specification:
| FASTENER LENGTH | 2.625 INCHES NOMINAL | | HARDNESS RATING | 22.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL | | HEAD HEIGHT | 0.234 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL COMP 1035 OR STEEL COMP 1040 OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | WIDTH BETWEEN FLATS | 0.500 INCHES NOMINAL | | SURFACE TREATMENT | PHOSPHATE OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.750 INCHES MINIMUM | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES DESIGNATOR | UNC |
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