parts.washer.plain
parts: C = parts.washer.plain ('data')
parts: C = parts.washer.plain ('data', NAME)
parts: S = parts.washer.plain ('solid', NAME)
parts: … = parts.washer.plain (…, Name, Value)
Plain washers, product grade A: normal series, ISO 7089, and chamfered, ISO 7090, small series, ISO 7092, and large series, ISO 7093-1.
C = parts.washer.plain ( returns every plain
washer in the catalogue as a table, one row for each maker’s article in
each size, sorted by size.
'data')C = parts.washer.plain ( returns
those for the screw thread NAME, as 'data', NAME)'M8': every article
sold as that washer, each with its hardness class, material and finish.
Nothing is built.
S = parts.washer.plain ( builds
the washer as a 'solid', NAME)solid.Shape, whether or not anyone sells it, in
any size its standard defines: a ring d1 across inside, d2
outside and h thick, lying on the xy plane with its axis on
the z axis. S.Name holds the designation.
Name/Value pairs:
'Series''normal', the default for 'solid', 'small' or
'large'. For 'data' it keeps that series only; without
it all come.'Chamfer'true for the chamfered washer of ISO 7090, normal series only,
false for one without, the default for 'solid'. For
'data' it keeps that kind only; without it both come.'Maker''data': only that maker’s articles, such as
'REYHER', in any case.'Detailed''solid': true chamfers a washer of ISO 7090 on the
outside edge of its top face, at 30 degrees to the axis and h/4
deep, the smallest chamfer the standard allows. By default
(false) it is a plain ring. The other washers have no detail. The table has these variables, each with its unit and its description,
which summary (C) lists; lengths are in millimetres:
designation | designation of the standard, as in
'Washer ISO 7089 - 8', without the hardness class |
standard | standard |
d | nominal size, the diameter of the screw thread |
d1 | inside diameter, nominal, the smallest |
d2 | outside diameter, nominal, the largest |
h | thickness, nominal |
class | hardness class, '200 HV' or
'300 HV'; empty for a material the standards give none |
material | 'steel', a stainless steel as
'A2', or another as 'brass' |
finish | finish as the maker names it, as
'plain' or 'zinc plated' |
maker | maker |
article | maker’s article number |
source | catalogue and page the article was read from |
Articles from REYHER, The Catalogue, edition 2020.04, English, pages 333 to 338 (steel), 567 to 570 (stainless steel) and 639 to 641 (brass, copper, aluminium): every article of the four standards in sizes they define. Left out: the polyamide washers sold as ISO 7089 in product grade C, the large series of ISO 7093-2, grade C, and the articles of DIN 125, 433 and 9021, withdrawn and replaced by these standards.
Dimensions from ISO 7089, 7090, 7092 and 7093-1, all 2000, Tables 1 and 2: ISO 7089 and 7090 read in DIN EN ISO 7089 and 7090:2000, ISO 7092 and 7093-1 in GOST ISO 7092-2016 and 7093-1-2016, all adopting them unchanged, and checked against the tolerances of ISO 4759-3:2000, read in IS 15274:2003; REYHER’s Technical Information (2019, TI-84 and 85) agrees in every nominal dimension but its ISO 7093 column, which carries DIN 9021’s.
See also: parts.nut.hex, parts.screw.hex
Source Code: parts.washer.plain