1. Crank Conversion Terminal Posts These M8 posts are designed to convert the regular 8mm bolt thread into cranking posts, allowing for the use of heavy battery terminals and larger inverters or multiple distribution points. Made of material, they are practical and reliable to use. 2. Easy Installation The M8 posts simply screw in place of the normally used bolt, and they come with an additional thread pattern that allows for the original bolt to be used on if desired. It is recommended to hand tighten the posts and use a pair of pliers to slightly tighten the grip, avoiding overtightening. 3. Wide Compatibility This terminal is compatible with various batteries, including Thumper RB12120 (Std ), Thumper RB12100 (Std ), Thumper EXT120 (Extreme ), Thumper EXT100 (Extreme ), as well as full river batteries and any deep cycle battery with an 8mm thread. 4. Practical and Durable Made of quality material, these terminal posts are built to last. They provide a reliable connection and enhance the performance of your battery setup, enabling efficient power transfer. Use scenarios Offgrid solar or wind power systems requiring current connections to large inverters and multiple distribution points. Marine or RV battery banks needing robust connections for heavy terminals and reliable power transfer. Retrofit or upgrade of existing equipment that uses standard 8mm bolts, allowing the original bolt to be used on .