M10 Female Threaded 7 Lobes Through Hole Grip Clamping Knob Product Name : Clamping Knob;Type : Screw On;Head Diameter : 50mm / 1.96" Thread Deepth : 17mm / 0.67";Thread Diameter : 10mm / 2/5" Total Height : 32mm / 1.26";Material : Metal, Plastic Color : Color;Silver Tone, Black : Silver Tone, Black Weight : 44g;Package Content : 1 x Clamping Knob