ITEM NAME:Dual Female Banana Plug Terminal Binding Post for Speaker Amplifiers JR There are two kinds of hexagonal handle and plum-blossom handle. The buyer does not specify which kind of handle to take, and the goods are delivered randomly. The parameters of the hexagonal handle terminal are as follows: Material: The spindle is pure copper plated with gold, and the nuts and gaskets are iron plated with gold, environmentally friendly plastics. Connection mode: Connect with 4mm banana plug or press wire directly. Pressure hole 3 mm perpendicular to connection post There are two holes in the panel: 12 mm in diameter and 19 mm in distance. Full length 42mm, screw shaft diameter: 5mm, foot pitch 19mm It can be mounted on a panel within 5 mm. The parameters of plum-shaped handle terminal are as follows: Material: The spindle is pure copper plated with gold, and the nuts and gaskets are iron plated with gold, environmentally friendly plastics. Connection mode: Connect with 4mm banana plug or press wire directly. Pressure hole 3 mm perpendicular to connection post. There are two holes in the panel: 13 mm in diameter and 19 mm in distance. Full length 45 mm, screw shaft diameter: 5 mm, foot pitch 19 mm It can be mounted on a panel less than 6 mm thick. Each channel with a good quality, beautiful appearance, cost-effective, very suitable for DIY power amplifier chassis..Connection mode: Connect with 4mm banana plug or press wire directly. Each channel with a good quality, beautiful appearance, cost-effective, very suitable for DIY power amplifier chassis. It can be mounted on a panel within 5 mm.