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National Stock Number:
5305-01-457-5175
Federal Supply Class:
5305
National Item Identification Number:
014575175
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:
| AES01C375A12AW9A9B | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | ASME B18.2.1 | 05047 | THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS | | B1821BH038C125C | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNC | | THREAD LENGTH | 1.000 INCHES NOMINAL | | FASTENER LENGTH | 1.250 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | HEAD STYLE | HEXAGON | | THREAD DIRECTION | RIGHT-HAND | | NOMINAL THREAD DIAMETER | 0.375 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM,A354,GR8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | CHROMATE ZINC OVERALL | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AASTM,B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | HEAD HEIGHT | 0.226 INCHES MINIMUM AND | | 0.243 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 0.551 INCHES MINIMUM AND | | 0.562 INCHES MAXIMUM |
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