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铁板攻丝固定铁件法,就是在铁件上先钻圆孔,圆孔直径略比螺栓直径小,然后在孔壁攻丝,再用螺栓固定。这种方法比铁钉、螺栓固定铁件法效果显著(见表),深受工人同志的欢迎。主要特点是:1.节约了螺栓固定铁件埋入混凝土构件中的螺帽。
The iron plate tapping and fixing iron method is to drill a round hole first in the iron piece. The diameter of the round hole is slightly smaller than the diameter of the bolt, and then the hole is tapped on the hole wall and then bolted. This method is more effective than iron nails and bolted iron pieces (see table) and is welcomed by the workers. The main features are: 1. It saves bolts embedded in concrete components with iron bolts.