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National Stock Number:
5305-00-165-1907
Federal Supply Class:
5305
National Item Identification Number:
001651907
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:
| 9L9178 | 11083 | CATERPILLAR INC |
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Techincal Specification:
| EXTENDED WASHER DIAMETER | 0.574 INCHES MINIMUM AND 0.600 INCHES MAXIMUM | | FASTENER LENGTH | 0.782 INCHES MINIMUM AND 0.813 INCHES MAXIMUM | | FEATURES PROVIDED | CASEHARDENED AND FINISHED HEAD | | HEAD HEIGHT | 0.265 INCHES MINIMUM AND 0.281 INCHES MAXIMUM | | LOCKING FEATURE | LOCKING TEETH BEARING SURFACE OF HEAD | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD DIAMETER | 0.312 INCHES | | WIDTH BETWEEN FLATS | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM | | THREAD CLASS | 2A | | THREAD LENGTH | 0.671 INCHES MINIMUM AND 0.813 INCHES MAXIMUM | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 18 |
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