The ST-132 Knob from Global Truss is a replacement locking knob for either the ST-132 or ST-157 Crank Stand. It has a black finish that matches the stand's finish, and the shaft's coarse threads are resistant to wear and cross threading for a long life. The mating surface of the screw is cut flat to provide even pressure to on the stand riser. The knob's large plastic head provides a comfortable grip that allows you to finger tighten and loosen the knob without over cranking the knob on the stand.