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<blockquote data-quote="maylar" data-source="post: 8129497" data-attributes="member: 541144">I have always had good luck using self-tapping screws for grounds. You need to drill the pilot hole just the right diameter so the screw has something to bite into otherwise it&#039;ll be loose. The screw should require a ratchet to drive it in. Tight but not stripped... takes experience to judge that. If you can get to both sides, obviously a bolt and nut is much better.I also use a lock washer (internal or external tooth star washers are better for this than split-locks). The lock washer goes between the terminal and the vehicle body, not under the screw head. Ideally you want to secure the wire with a tie-wrap to something so the wire doesn&#039;t move and make the connection loose over time. Follow up with paint or dielectric grease to keep the connection from oxidizing.Materials don&#039;t matter much here - I use steel hardware and plated copper terminals.</blockquote>

[QUOTE="maylar, post: 8129497, member: 541144"] I have always had good luck using self-tapping screws for grounds. You need to drill the pilot hole just the right diameter so the screw has something to bite into otherwise it'll be loose. The screw should require a ratchet to drive it in. Tight but not stripped... takes experience to judge that. If you can get to both sides, obviously a bolt and nut is much better. I also use a lock washer (internal or external tooth star washers are better for this than split-locks). The lock washer goes between the terminal and the vehicle body, not under the screw head. Ideally you want to secure the wire with a tie-wrap to something so the wire doesn't move and make the connection loose over time. Follow up with paint or dielectric grease to keep the connection from oxidizing. Materials don't matter much here - I use steel hardware and plated copper terminals. [/QUOTE]

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