Features Easy Color Identification: Bright color markings allow for quick identification, enhancing convenience and efficiency during your projects Reliable Connection Assurance: Nickel-plated brass s ensure a secure connection, while the insulated ABS shell prevents any risk of leakage Versatile Installation Compatibility: Designed with a 12mm installation hole diameter and accommodates panel thicknesses up to 6mm for seamless wire welding connections Features: 1、EASY TO DISTINGUISH: Bright color marking is easy to distinguish, meet the needs of use, very convenient and useful 2、NO LOSS CONNECTION: Brass nickel plated s bring no loss in connection, ABS shell is insulated to prevent leakage 3、WIRE WELDING CONNECTION METHOD: The installation hole diameter is 12mm, the maximum panel thickness for 6mm, and using wire welding connection method 4、FOR 4MM BANANA PLUG CONNECTOR: Withstand CATIII 1000V voltage, maximum 32A current, suitable for 4mm banana plug connector 5、ENOUGH TO REPLACE: A total of 20pcs of banana socket binding post adapter, enough for you to replace and use Specification: Item Type: Banana Socket Material: Brass, ABS Purpose: Suitable for Approx. 4mm / 0.16in banana plug connector Withstand Voltage: CATIII 1KV Maximum Current: 32A Hole Diameter: Approx. 4mm / 0.16in Installation Hole Diameter: Approx. 12mm / 0.47in Connection Method: Welding Package List: 20 x Banana Socket Package List 20 x Banana Socket