Feature 1 Ultra Rugged Construction: These plugs are made of corrosion resistant pure copper with a chrome finish to prevent air oxidation and provide your sound components with a perfectly stable signal and sound quality. 2 Easy Installation: Y plugs make it easy to install speaker wires. Use a small inner hex wrench to unscrew the screws, twist the wire harness, insert the wires into the y spade plug, tighten the 2 screws, and put them in the heat shrink, no soldering required. 3 Widely Used: Our 45 Degree speaker spade connector is ideal for use with AV receivers, amplifiers and surround sound systems and is compatible with wire diameters up to 4mm. 4 Double Screw Design: The perfect replacement for the Y plug spade connector, the double screw locking ensures that the speaker cable is firmly fixed and will not loosen over time, making the connection more durable. 5 Superior Quality: This Y spade connector makes a secure, positive contact with the binding post. Wider base minimizes short circuits for maximum signal transmission.Item Type: Speaker Y Spade ConnectorConductor Material: Pure CopperAccommodates Maximum Wire Diameter: Approx. 4mm0.16inFinish: Chrome PlatedConnection Method: Can Be Welded, Can Be Screwed Package List8 x Y Spade Plug8 x Heat Shrink Tube1 x Hex WrenchNotePlease allow some errors due to manual measurement.