Photo 1 of uxcell 20pcs M4 x 12mm Metric Male Thread Knurled Knobs, Thumb Screw Clamping Knobs Grip Plastic Handle Hand Knobs with Threaded Stud, White

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Photo 1 of uxcell 20pcs M4 x 12mm Metric Male Thread Knurled Knobs, Thumb Screw Clamping Knobs Grip Plastic Handle Hand Knobs with Threaded Stud, WhitePhoto 2 of uxcell 20pcs M4 x 12mm Metric Male Thread Knurled Knobs, Thumb Screw Clamping Knobs Grip Plastic Handle Hand Knobs with Threaded Stud, White