本手册的主要目的是提供基于统计的设计来源 常用金属材料和接头的值。此外，其他机械和电气设备 包括航空航天结构设计所需的物理特性。本章虽然包括三个主要部分，但主要涉及联合许可。第8.1部分涉及机械紧固接头；第8.2部分，冶金接头（各种焊接和钎焊工艺）。第8.3部分包含结构部件数据的信息；它涉及轴承、滑轮和电缆。

The primary purpose of this Handbook is to provide a source of statistically based design values for commonly used metallic materials and joints. Additionally, other mechanical and physical properties needed for the design of aerospace structures are included.This chapter, while comprising three major parts, primarily is concerned with joint allowables. Part 8.1 is concerned with mechanically fastened joints; Part 8.2, with metallurgical joints (various welding and brazing processes). Part 8.3 contains information for structural component data; it is concerned with bearings, pulleys, and cables.