BS EN ISO 7092-2000 平垫圈.小型系列.产品等级A级

标准号：BS EN ISO 7092-2000
中文标准名称：平垫圈.小型系列.产品等级A级
英文标准名称：Plain washers. Small series. Product grade A
标准类型：J13
发布日期：2000/9/15 12:00:00
实施日期：2000/9/15 12:00:00
中国标准分类号：J13
国际标准分类号：21.060.30
适用范围：This International Standard specifies the characteristics of small-series, product-grade-A plain washers in the 200 HV and 300 HV hardness classes and of nominal sizes (nominal thread diameters) ranging from 1,6 mm to 36 mm inclusive. Washers of hardness class 200 HV are suitable for — cheese head screws in property classes up to and including 8.8, or made of stainless steel; — hexagon socket head cap screws in property classes up to and including 8.8, or made of stainless steel; — hexalobular socket head cap screws in property classes up to and including 8.8, or made of stainless steel; — case-hardened thread rolling screws with cheese heads. Washers of hardness class 300 HV are suitable for — hexagon socket head cap screws in property classes up to and including 10.9; — hexalobular socket head cap screws in property classes up to and including 10.9. If dimensions other than those listed in this International Standard are required, they should be selected from these 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.