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National Stock Number:
5305-01-576-0636
Federal Supply Class:
5305
National Item Identification Number:
015760636
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:
| B1821BH088F325L | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | THREAD LENGTH | 3.000 INCHES MINIMUM | | FASTENER LENGTH | 3.250 INCHES NOMINAL | | MATERIAL | STEEL OVERALL | | HEAD STYLE | HEXAGON | | THREAD DIRECTION | RIGHT-HAND | | NOMINAL THREAD DIAMETER | 0.875 INCHES | | THREAD QUANTITY PER INCH | 14 | | THREAD CLASS | 2A | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J429 GR 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | MINIMUM TENSILE STRENGTH | 76400 POUNDS PER SQUARE INCH | | HEAD HEIGHT | 0.531 INCHES MINIMUM AND | | 0.563 INCHES MAXIMUM | | WIDTH BETWEEN FLATS | 1.285 INCHES MINIMUM AND | | 1.312 INCHES MAXIMUM | | LOCKING FEATURE | STRIP THREADS | | PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW, CAP, HEXAGON HEAD |
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