DB25-M2 D-SUB Female Adapter Screw Nut Connector Terminal Block Breakout material:cooper,metal and plastic screw nut connector type,female plug terminal terminal spacing is 5mm,screw hole diameter is 2.5mm,use a width of 2.5mm screwdriver to assemble Put 3mm thickness insulated pad at the bottom The terminals can accept 24-12AWG wire and max 10A current