These soft metal nuts are perfect for a 1/2 spanner as they are specially made so they will NOT provide any protection to your wheels. In a wrench, they are deformed and need to be picked out with a drill. But don't worry, they are softer to drill than plastic. Because they're so soft, a crook without a 1/2" socket wrench can remove them with a Chinese vise. If you like rust, they'll add a feature to your wheels for a week. Send that junk back.