本SAE信息报告作为咨询指南提供。建议自行申请。内容已尽可能准确地呈现，但其应用的责任在于用户。本文件涵盖了扭矩-张力关系中的许多变量:摩擦、材料、温度、湿度、紧固件和配合零件的光洁度、表面，以及使用的紧固工具或设备的类型。本文件还描述了实现令人满意的紧固接头拧紧所需的扭矩管理。 本指南仅适用于间隙配合螺纹，例如常见的6g/6H级配合。其他螺纹类型，包括过盈配合、机械锁紧、有效扭矩或ISO公制以外的形式，可能适用于本标准的某些方面，但未具体涵盖。本文件中描述的程序基于确定最终用户使用的扭矩-张力关系的一般因素。本指南仅为指南，不作为采购要求。 对于关键接头设计，装配扭矩值应通过使用精确的装配组件进行试验来确定。

This SAE Information Report is provided as an advisory guide. Individual application discretion is recommended. The content has been presented as accurately as possible, but responsibility for its application lies with the user. The document covers a number of the variables in the torque-tension relationship: friction, materials, temperature, humidity, fastener and mating part finishes, surfaces, and the kind of tightening tools or equipment used.Also described in this document is the torque management required to achieve satisfactory fastened joint tightening.This guide is limited in application to clearance fit threads, such as the common 6g/6H class of fit. Other thread types including interference fit, mechanical locking, prevailing torque, or forms other than ISO-metric may apply to some aspects of this standard but are not specifically covered.The procedures described in this document are based on general factors for the determination of the torque-tension relationship for the use of end users. This is a guide and is not intended to be made a procurement requirement. For critical joint design, the assembly torque values should be determined by experimentation using the exact assembly components.