Using this mounting kit is easy. First, decide where you want to install the standoffs on your circuit board or robot chassis. Then, insert the standoffs into the pre - drilled holes. Next, use the provided M3 * 6 screws and M3 nuts to secure the standoffs in place. Make sure the screws are tightened properly, but don't over - tighten as it might damage the standoffs or your project. When it comes to maintenance, keep the kit in a dry place to prevent rusting. If the standoffs get dirty, you can clean them with a dry cloth. Avoid using harsh chemicals as they may corrode the metal parts.