uxcell 20 Pcs Copper 5mm Light Emitting Diode LED Holder Mount Panel Display Product Name : LED Holder;Fit LED Diameter : 5mm/0.2" Thread Diameter : 8mm / 0.3";Total Length : 12 mm / 0.47" Material : Metal,Copper;Color : Silver Tone Net Weight : 45g Safety locking screw in base for secure fitting; Durable, heatless and long-lasting