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National Stock Number:
5305-01-274-9814
Federal Supply Class:
5305
National Item Identification Number:
012749814
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:
| 91244A554 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| MINIMUM TENSILE STRENGTH | 11800 POUNDS PER SQUARE INCH | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 1.000 INCHES MINIMUM AND 3.000 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 20 | | WIDTH BETWEEN FLATS | 0.422 INCHES NOMINAL | | COLOR | OFF-WHITE OVERALL | | FASTENER LENGTH | 3.000 INCHES NOMINAL | | HEAD HEIGHT | 0.172 INCHES NOMINAL | | HEAD STYLE | HEXAGON | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | MATERIAL | PLASTIC POLYAMIDE OVERALL |
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