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National Stock Number:
5305-01-435-0602
Federal Supply Class:
5305
National Item Identification Number:
014350602
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:
| B18231B20045N | 80204 | AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED |
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Techincal Specification:
| EXTERNAL THREAD TOLERANCE CLASS | 6G | | FASTENER LENGTH | 38.7 MILLIMETERS MINIMUM AND 41.3 MILLIMETERS MAXIMUM | | HEAD HEIGHT | 12.12 MILLIMETERS MINIMUM AND 12.88 MILLIMETERS MAXIMUM | | HEAD STYLE | HEXAGON | | MATERIAL | STEEL PROPERTY CLASS 10.9 OVERALL | | NOMINAL THREAD DIAMETER | 20.0 MILLIMETERS | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-Z-325,TY2,CL3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 36.2 MILLIMETERS NOMINAL | | THREAD PITCH IN MILLIMETERS | 2.5 | | THREAD SERIES DESIGNATOR | M | | WIDTH BETWEEN FLATS | 29.17 MILLIMETERS MINIMUM AND 30.00 MILLIMETERS MAXIMUM |
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