Press Fit Thumb Screw Knobs, Black Knurled Knobs 100 Piece Set, M4 Screw Size, 13mm Head Dia – 99-629-8

Press Fit Thumb Screw Knobs, Black Knurled Knobs 100 Piece Set, M4 Screw Size, 13mm 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 f