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National Stock Number:
5305-12-198-9828
Federal Supply Class:
5305
National Item Identification Number:
121989828
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:
| DIN931-M8X90-8.8-B3B | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV | | M8X90DIN931-8.8-B3B | D8286 | DIN DEUTSCHES INSTITUT FUER NORMUNGEV |
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Techincal Specification:
| EXTERNAL THREAD TOLERANCE CLASS | 6 SMALL G | | FASTENER LENGTH | 90.0 MILLIMETERS NOMINAL | | HARDNESS RATING | 225 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 300 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM | | HEAD HEIGHT | 5.3 MILLIMETERS NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | DIN898PART1 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL | | MINIMUM TENSILE STRENGTH | 800 NEWTONS PER SQUARE MILLIMETER | | NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS | | OFFSET YIELD STRENGTH | 640 NEWTONS PER SQUARE MILLIMETER | | WIDTH BETWEEN FLATS | 13.0 MILLIMETERS NOMINAL | | STRENGTH GRADE DESIGNATION | 8.8 | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DIN267PART9,KEY B3B ASSN STD SINGLE TREATMENT RESPONSE | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES DESIGNATOR | ISO M | | THREAD PITCH IN MILLIMETERS | 1.25 |
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