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DIN 1816 Round Nut with Set Pin Holes Inside; ISO Metric Fine Thread 现行 发布日期 :  2001-03-01 实施日期 : 

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1. Scope 1.1 This Standard establishes preferred sizes for round, square, rectangular and hexagonal metal products conventionally known as rod, wire, and bar. It does not cover flat metal products conventionally known as plate, sheet, strip, foil, and

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AS 1111.1:2015 ISO metric hexagon bolts and screws - Product grade C Bolts 现行 发布日期 :  2015-08-26 实施日期 : 

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This recommended practice provides the preferred metric units for use in Electrical and Electronics Science and Technology and supports the application of IEEE/ASTM SI 10.

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This is a detail standard for subracks, plug-in units, printed boards, and backplanes to be used in conjunction with IEEE Std 1301-1991 [16] and a 2 mm connector as defined in EIA IS-64 (1991) [2].

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The purpose of this recommended practice is to give guidance in the implementation of the generic standard, IEEE Std 1301-1991 , and the connector-related standards, such as IEEE Std 1301.1-1991 and IEEE Std 1301.3-1992 . This recommended practice may be applied in all fields of electronics where equipment and installations are required to conform to a metric modular order. The IEEE 1301 metric equipment practices are in accordance with IEC 917 (1988) and IEC 917-0 (1989) , including cabinet,… read more rack, subracks, printed boards, and common connector-dependent dimensions for connector pitches of 2.5, 2.0, 1.5, 1.0, and 0.5 mm. The coordination dimensions given in IEEE Std 1301-1991 , for heights, widths, and depths for a mechanical structure lie within a homogeneous, metric, modular, three-dimensional grid as specified in IEC 917 (1988) . Applications of different connector families with pitches of 2.5, 2.0, 1.5, 1.0, and 0.5 mm developed from IEEE Std 1301-1991 must all accept the same backplane grid of 0.5 mm in order to standardize manufacturing and test equipment and allow the mixing of different connector families on the same backplane. Optimum conditions are thereby created for the application of computer-assisted methods throughout design and manufacturing, such as computer-assisted planning, development, manufacturing, testing, and installation. read less

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