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Finned screw / butterfly / zinc-plated steel / polyamide
The main material used for the construction of this item is Polyamide PA, which is glass-fiber reinforced, in order to provide a better quality and more durability for the construction. In addition to this, the brass bush is a black matt model, while the zinc-plated steel and chromated design are other major advantages. The contact surfaces are easy to grip, while the item can also be used for high tightening torques.