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National Stock Number:
5305-01-417-7138
Federal Supply Class:
5305
National Item Identification Number:
014177138
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:
| B1821BH075F200L | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | | MS90727-187L | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | THREAD LENGTH | 1.750 INCHES MINIMUM | | FASTENER LENGTH | 2.000 INCHES NOMINAL | | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE | | STEEL FASTENER | | HEAD STYLE | HEXAGON | | THREAD DIRECTION | RIGHT-HAND | | NOMINAL THREAD DIAMETER | 0.750 INCHES | | THREAD QUANTITY PER INCH | 16 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-F-18240 MIL SPEC SINGLE MATERIAL RESPONSE LOCKING FEATURE | | ASTM A354, GRADE 8 ASSN STD ALL MATERIAL RESPONSES FASTENER | | SURFACE TREATMENT | ZINC AND | | CHROMATE FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633, TYPE 2 ASSN STD ALL TREATMENT RESPONSES FASTENER | | COLOR | YELLOW OR | | BRONZE OR | | OLIVE DRAB FASTENER | | HEAD HEIGHT | 0.455 INCHES MINIMUM AND | | 0.483 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 1.100 INCHES MINIMUM AND | | 1.125 INCHES MAXIMUM | | LOCKING FEATURE | PATCH THREADS |
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