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National Stock Number:
5305-01-561-5808
Federal Supply Class:
5305
National Item Identification Number:
015615808
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:
| 92323A534 | 39428 | MCMASTER-CARR SUPPLY CO |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | THREAD LENGTH | 0.625 INCHES NOMINAL | | FASTENER LENGTH | 0.625 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | HEAD STYLE | HEXAGON EXTENDED WASHER | | THREAD DIRECTION | RIGHT-HAND | | NOMINAL THREAD DIAMETER | 0.313 INCHES | | THREAD QUANTITY PER INCH | 18 | | THREAD CLASS | 2A | | SURFACE TREATMENT | ZINC OVERALL | | HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND | | 34.0 ROCKWELL C MAXIMUM OVERALL | | MINIMUM TENSILE STRENGTH | 120000 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.328 INCHES NOMINAL | | WIDTH BETWEEN FLATS | 0.500 INCHES NOMINAL | | EXTENDED WASHER DIAMETER | 0.688 INCHES NOMINAL | | SPECIAL FEATURES | FLANGE HEAD IS SERRATED TO PROVIDE A GRIP ON THE BEARING SURFACE. |
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