EN ISO 887:2000

SLOVENSKI STANDARD
01-julij-2002
Okrogle ravne podložke za metrske vijake in matice za splošno rabo - Splošni
pregled (ISO 887:2000)
Plain washers for metric bolts, screws and nuts for general purposes - General plan (ISO
887:2000)
Flache Scheiben für metrische Schrauben und Muttern für allgemeine Anwendungen -
Allgemeine Übersicht (ISO 887:2000)
Rondelles plates pour vis et écrous métriques pour usages généraux - Plan général (ISO
887:2000)
Ta slovenski standard je istoveten z: EN ISO 887:2000
ICS:
21.060.30 Podložke, varovalni elementi Washers, locking elements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 887
Second edition
2000-06-15
Plain washers for metric bolts, screws and
nuts for general purposes — General plan
Rondelles plates pour vis et écrous métriques pour usages généraux —
Plan géneral
Reference number
ISO 887:2000(E)
©
ISO 2000
ISO 887:2000(E)
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ISO 887:2000(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, governmental and non-governmental, in
liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 887 was prepared by Technical Committee ISO/TC 2, Fasteners.
This second edition cancels and replaces the first edition (ISO 887:1983), which has been technically revised.
Annex A of this International Standard is for information only.
INTERNATIONAL STANDARD ISO 887:2000(E)
Plain washers for metric bolts, screws and nuts for general
purposes — General plan
1 Scope
This International Standard specifies the full range of the nominal dimensions of product-grade-A and -C plain
washers for general-purpose bolts, screws and nuts of nominal thread diameters ranging from 1 mm to 150 mm
inclusive.
This International Standard is not applicable to washers for screw and washer assemblies in relation to hole
diameters and thicknesses.
Information on the use of plain washers is given in annex A.
2 Normative reference
The following normative document contains provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, any of these
publications do not apply. However, parties to agreements based on this International Standard are encouraged to
investigate the possibility of applying the most recent edition of the normative document indicated below. For
undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC
maintain registers of currently valid International Standards.
ISO 273:1979, Fasteners — Clearance holes for bolts and screws.
3 Clearance holes
The clearance hole diameters d for washers (see Figure 1) shall be chosen in accordance with those specified in
ISO 273, as follows:
� fine series for washers of product grade A and with a nominal thickness of less than 6 mm, i.e. for nominal
sizes < 39 mm;
� medium series for washers of product grade A with a nominal thickness equal to or greater than 6 mm, i.e. for
nominal sizesW 39 mm and fo
...