Product Review

Metal material: zinc alloy This is 4mm diameter banana jacks / sockets / terminals.
Suitable for 4mm Banana Plug
Nickel Plated inside,Brass plastic Jack
Applied for 4mm banana plug/Stackable plugs
Specification:
Material:Nickel-plated
Color:Silver,Black,Red
Thread Length: 5mm
Thread diameter: about 5.7mm
Socket diameter: 11mm
Dimension:15 x 11mm/0.59 x 0.43"(L x Dia)

Package Contains:

10 x Banana Socket;
18-month warranty and DCFun's kindly customer service, welcome to contact us.