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National Stock Number:
5305-01-218-8280
Federal Supply Class:
5305
National Item Identification Number:
012188280
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:
| 991 8752 | 34914 | HIAB USA INC |
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Techincal Specification:
| FASTENER LENGTH | 140.00 MILLIMETERS NOMINAL | | HARDNESS RATING | 18.0 ROCKWELL C MINIMUM AND 31.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL PROPERTY CLASS 8.8 OVERALL | | MINIMUM YIELD STRENGTH | 91000 POUNDS PER SQUARE INCH | | MINIMUM TENSILE STRENGTH | 113784 POUNDS PER SQUARE INCH | | NOMINAL THREAD DIAMETER | 0.875 INCHES | | SURFACE TREATMENT | ZINC OVERALL | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | UNC | | THREAD QUANTITY PER INCH | 9 |
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