What Size Hole is Needed for an M12 Bolt? | Expert Guide
Learn the correct hole size for an M12 bolt, including tips for tapping and clearance adjustments.
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An M12 bolt requires a 12mm hole for a precise fit. The 'M' denotes the metric system and indicates a 12mm outer thread diameter. For tapping threads, a slightly smaller hole is needed, while for clearance, a slightly larger hole might be required.
FAQs & Answers
- What is an M12 bolt? An M12 bolt is a metric bolt with a nominal diameter of 12 mm, commonly used in various applications.
- What size drill bit do I need for an M12 bolt? To insert an M12 bolt, use a 12 mm drill bit for clearance, or slightly smaller for tapping threads.
- Why do I need different hole sizes for tapping and clearance? Tapping requires a smaller hole for thread engagement, while clearance needs a larger hole for the bolt to fit through without resistance.