本SAE推荐规程涵盖了使用张力指示垫圈（TIW）张紧的紧固件的安装和检查方法，以确保在机械紧固接头中产生足够的张力。图1描绘了一个典型的TIW，图2描绘了一个在张紧前后带有TIW的紧固件组件。本文件描述了TIW的使用实践，TIW通常用于SAE J429 5级和8级紧固件或其公制对应件，尽管相同的原则适用于使用其他紧固件的螺栓接头。建议用户在将这些产品用于特殊紧固件或应用之前，联系制造商，征求其使用建议。本文件定义并说明了首选的安装和检查方法。 本文件的内容尽可能准确；然而，其应用的责任在于用户。

This SAE Recommended Practice covers installation and inspection methods for fasteners which are tensioned using Tension Indicating Washers (TIWs) as a means to ensure that adequate tension is developed in mechanically fastened joints. Figure 1 depicts a typical TIW, and Figure 2 depicts a fastener assembly with a TIW before and after tensioning.This document describes practices for the use of TIWs which are typically produced for use with SAE J429 Grade 5 and Grade 8 fasteners or their metric counterparts, although the same principals hold true for bolted joints using other fasteners. Users are advised to contact a manufacturer for advice on use of these products before using them with special fasteners or applications.This document defines and illustrates preferred installation and inspection methodologies. The contents of this document are presented as accurately as possible; however, responsibility for its application lies with the user.