Uhome 10pcs Screw metal head DC Power Jack Socket DC-022 2.1 x 5.5 mm with Screw Nut DIY 180-Degree with sheet metal Screw Diameter: 12mm Temperature: -40~55 deg C Gender: Female Suitable Plug Size: 2.1x5.5mm Actuating Force: 3-20N Life: 5000 times Rated Load: DC30V/0.5A Contact Resistance: &lt;=0.03 ohm Insulation Resistance: &gt;=100 Mohm Withstand Voltage: AC 500V?50Hz?/min