uxcell M6 x 16mm Male Thread Screw 22mm Dia Star Shaped Clamping Knob 5 Pcs Product Name : Clamping Knob;Type : Screw On;Head Diameter : 22mm / 0.9" Thread Length : 16mm /0.6&ldquo;;Thread Diameter : 6mm / 0.24" Total Height : 30mm / 1.2";Material : Metal, Plastic Color : Color;Silver Tone, Black : Silver Tone, Black Weight : 36g;Package Content : 5 x Clamping Knob