BCP 5-Piece Plum Blossom Shape M6x20mm Threaded Knurled Thumbscrew Grip Knobs Thumb Screw for Machinery Latche Material: Metal + Plastic Hex Head Diameter: 32mm / 1.26"; Male Thread Length: 20mm / 0.79" Male Thread Diameter: M6; Total Height: 34mm / 1.33" Color: Silver Tone, Black Package Included: 5-Pieces