5/1618 TTrack Star Knob Thru Hole Clamping Threaded Nuts Jig Knobs 4 PCS
[Fine work] : The screw head of the clamping nut knob is complete, the screw is deep, the screw head is neat and clear, the force is uniform, and it is not easy to slide, the clamping nut is very good as a fixed fixture, maintain stability, loosen and tighten almost no effort, and can be adjusted quickly and easily.