For 4/0 AWG lugs and down. Every application is different and performance may vary due to impedance, amplifier efficiency, alternator power, etc. (M8 4 Bolts, M6 4 Bolts, M8 2 Fastening Bolts). Car audio modification.
This product would be ideal for car audio enthusiasts looking for high-quality terminal lugs and bolts to safely connect battery terminals at home.