XS Power 580 M6 SAE Brass Bolts for 551 I-Bar Terminal Adapter

The 580 is a set of short brass post adapters with M6 threads, made to work with the 551 I-Bar terminal adapter and M6 battery terminals. The short profile is the point. When a battery sits under a seat, in a factory tray with a tight hood clearance, or inside a sealed box, a tall post adapter is the part that keeps the lid from closing. These keep the connection low while still giving you a proper threaded landing point for ring terminals. Brass is what makes them work electrically. It carries high current well and holds its dimensions when a nut is torqued against it, so a terminal carrying amplifier or inverter current stays tight instead of loosening as it heats and cools. That keeps resistance and heat out of the connection. Use the 580 when you need M6 posts on an I-Bar setup, when clearance above the battery is limited, or when you are standardizing terminal hardware across a build so every ring terminal and every wrench matches.