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National Stock Number:
5305-01-164-4478
Federal Supply Class:
5305
National Item Identification Number:
011644478
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:
| B1821BH038C100C | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED | | FF-S-85 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC | | MS18154-60L | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| LOCKING FEATURE | STRIP THREADS | | HOLE CONFIGURATION STYLE | HEXAGON FLATS | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 1 | | HOLE DIAMETER | 0.060 INCHES MINIMUM AND | | 0.068 INCHES MAXIMUM | | FEATURES PROVIDED | FINISHED HEAD | | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND | | 10P STYLE AND | | 8 GRADE | | THREAD SERIES DESIGNATOR | UNC | | THREAD LENGTH | 0.844 INCHES MINIMUM AND | | 1.000 INCHES MAXIMUM | | FASTENER LENGTH | 0.969 INCHES MINIMUM AND | | 1.000 INCHES MAXIMUM | | MATERIAL | PLASTIC POLYAMIDE LOCKING FEATURE | | STEEL FASTENER | | 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 | SAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE FASTENER | | SURFACE TREATMENT | ZINC AND | | CHROMATE FASTENER | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE FASTENER | | HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND | | 38.0 ROCKWELL C MAXIMUM FASTENER | | MINIMUM TENSILE STRENGTH | 150000 POUNDS PER SQUARE INCH | | 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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