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对标准螺母作简单改进可能使扳手和其它紧固工具成为多余。在科隆国际五金博览会上展出的苏帕螺母只要用手就可以拧紧和松开,而且在使用时能自动调整到最佳紧固力。这种螺母在晚些时候将在市场销售。 这种所谓苏帕螺母的奥秘在于附加在螺帽下
Simple modifications to standard nuts may make wrenches and other fastening tools unnecessary. Suparnami exhibited at the Cologne International Hardware Fair can be tightened and loosened by hand and automatically adjusts to the optimum tightening force when in use. This nut will be on the market later. The mystery of this so-called Supa nut is attached to the nut