CESS Dual Binding Post Terminal - Amplifier/Speaker / Power Cable Connector - Banana Jack Socket - Length 2.3" (2 Pack) Go to amazon.com Related posts 10 best speaker terminal banana FeatureScrew Diameter:4.8mm,Total Length:59mmSuitable for 4mm banana plugs.Screw Bolt Diameter 4.8mmColor: Red and Black DescriptionScrew Diameter::4.8mm,Total Length:59mm. Suitable for 4mm banana plugs. Pure Copper(Non-magnetic). Screw Bolt Diameter: 4.8mm. Color: Red and Black