Uxcell a15052100ux0361 Black M8x60mm Male Threaded Screw on Type Star Head Clamping Knob Grip Weight: 45G; product Name: Star head knob Main material: plastic, metal; Package Content: 1 x Star head knob Main Color: black, Silver Tone; thread size: 8 x 60mm/ M8 x 2.4"(D*l) Star head Dia: 38mm/ 1.5"; Total height: 86mm/ 3.4" Head shape: 5 point Star; pitch: 1.25mm