在电气连接中,紧固件必不可少,如螺栓、螺帽、垫圈、弹簧垫等。其类型有两种,一种是仅起连接、紧固作用的(如图1所示),一般是铁质材料制成;另一种是除了紧固作用之外,还有一个重要作用即兼有导电作用(如图2所示),一般是黄铜或紫铜制成。 In electrical connections, fasteners are essential, such as bolts, nuts, washers, spring washers and so on. There are two types, one is only the connection, fastening (as shown in Figure 1), is generally made of iron material; the other is in addition to the fastening effect, there is an important role that Both conductive (as shown in Figure 2), usually made of brass or copper.