BS 4933-2010 ISO公制黑色罩头和沉头螺拴,螺钉和六角螺母规范

标准号：BS 4933-2010
中文标准名称：ISO公制黑色罩头和沉头螺拴,螺钉和六角螺母规范
英文标准名称：Specification for ISO metric black cup and countersunk head bolts and screws with hexagon nuts
标准类型：J13
发布日期：2010/12/31 12:00:00
实施日期：2010/12/31 12:00:00
中国标准分类号：J13
国际标准分类号：21.060.10;21.060.20
适用范围：This British Standard specifies requirements and provides general dimensions and tolerances for the following types of cup head and countersunk head bolts and screws:? cup head bolts and screws;? cup head bolts with nibs;? cup head square neck bolts;? 90° countersunk head bolts and screws;? 90° countersunk head bolts with nibs;? 90° countersunk head square neck bolts;? 120° countersunk head square neck bolts.Mechanical properties for steel bolts and screws are specified in BS EN ISO 898?1.This British Standard also specifies requirements for the nuts to be provided with bolts and screws conforming to this standard.NOTE 1 A table summarizing the key requirements of BS 4933 is included in Annex A. This table does not list every requirement in BS 4933 but is justintended as a quick reference for users.NOTE 2 It is considered that the range of nominal sizes included in this standard is adequate for most of the applications for which this series islikely to be employed, but for the convenience of users requiring larger sizes, further information is provided in Annex B.