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National Stock Number:
5305-01-622-9793
Federal Supply Class:
5305
National Item Identification Number:
016229793
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:
| AES01C250A00AW9AA2 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | B18.2.1 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | THREAD LENGTH | 0.875 INCHES NOMINAL | | FASTENER LENGTH | 1.0 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | HEAD STYLE | HEXAGON | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A 354,GRADE BD NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B 633,TYPE 2,SC 3 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL | | HEAD HEIGHT | 0.15 INCHES MINIMUM AND | | 0.16 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.428 INCHES MINIMUM AND | | 0.438 INCHES MAXIMUM | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW CAP HEX |
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