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National Stock Number:
5305-01-276-1639
Federal Supply Class:
5305
National Item Identification Number:
012761639
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:
| 071 320 80 | 81495 | KOEHRING CRANES INC DBA TEREX CRANES DIV WAVERLY OPERATIONS | | DIN931-M20X180-8.8-A4C | 15526 | METRIC AND MULTISTANDARD COMPONENTS CORP |
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Techincal Specification:
| EXTERNAL THREAD TOLERANCE CLASS | 6G | | FASTENER LENGTH | 180.0 MILLIMETERS NOMINAL | | HEAD HEIGHT | 13.0 MILLIMETERS NOMINAL | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL PROPERTY CLASS 8.8 OVERALL | | NOMINAL THREAD DIAMETER | 20.0 MILLIMETERS | | WIDTH BETWEEN FLATS | 30.0 MILLIMETERS NOMINAL | | SURFACE TREATMENT | ZINC OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 175.0 MILLIMETERS MINIMUM AND 180.0 MILLIMETERS MAXIMUM | | THREAD SERIES DESIGNATOR | M | | THREAD PITCH IN MILLIMETERS | 2.5 |
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