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ISO 7090:2000现行

Plain washers, chamfered - Normal series - Product grade A

出版：International Organization for Standardization

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基本信息

标准编号： ISO 7090:2000

发布时间：2000/6/1 0:00:00

标准类别：Standard

出版单位：International Organization for Standardization

标准页数：5

标准简介

This International Standard specifies the characteristics of normal-series, product-grade-A plain washers chamfered at the outside diameter, in the 200 HV and 300 HV hardness classes and of nominal sizes (nominal thread diameters) ranging from 5 mm to 64 mm inclusive.Washers of hardness class 200 HV are suitable for- bolts and screws of product grades A and B in property classes up to and including 8.8;- nuts of product grades A and B in property classes up to and including 8;- bolts, screws and nuts of stainless steel of similar chemical composition;- case-hardened thread rolling screws.Washers of hardness class 300 HV are suitable for- bolts and screws of product grades A and B in property classes up to and including 10.9;- nuts of product grades A and B in property classes up to and including 10.If dimensions other than those listed in this International Standard are required, they should be selected from those given in ISO 887.When soft material pieces are clamped, or large clearance holes in the workpiece are used, the user should check the technical suitability of this type of washer.

本标准替代的旧标准

97/706018 DC

ISO 7090:1983

97/706018 DC : MAR 97

等同采用的国际标准

I.S. EN ISO 7090:2000 - Identical

DIN 125-1 (1990-03) - Similar

DIN 125-2 (1990-03) - Similar

UNI EN ISO 7090:2001 - Identical

NBN EN ISO 7090:2000 - Identical

ONORM EN ISO 7090:2000 - Identical

DIN EN ISO 7090 (2000-11) - Identical