Fabricated components can be joined together in a variety of ways. The type of joint may be temporary or permanent. Temporary joints may be assembled and dismantled as often as is required without damage to the members being joined or the joining device (e.g. a nut and bolt). Permanent joints cannot be dismantled after assembly without damage to, or the destruction of, the joint device (e.g. drilling out a rivet) or the members being joined (e.g. ﬂ ame cutting a welded joint). Figure 9.1 shows the different ways in which fabrications may be joined.