TOOGOO(R) 2 Pcs Kitchenware Black Silver Tone Tempered Glass Pot Pan Lid Knob Product Name : Cookware Pot Lid Knob Material : Metal and Plastic Mounting Thread Hole Diameter : 5mm / 1/5" Screw Thread Length : 10mm / 0.39" Depth of the Bottom Cover : 5mm/ 0.2"