Press Fit Thumb Screw Knobs, Black Knurled Knobs 100 Piece Set, 1/4 Screw Size, 3/4 Head Dia – 99-603-3

Press Fit Thumb Screw Knobs, Black Knurled Knobs 100 Piece Set, 1/4" Screw Size, 3/4" Head Dia Knurled head types have a pattern of ridges that allow for easy gripping and tightening by hand. Knurled head types are common in applications requiring frequent