What is a 3/8 Spanner? Size & Uses Explained

Learn the size and applications of a 3/8 spanner, an essential tool for DIY and automotive projects.

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A 3/8 spanner refers to a tool that fits a bolt or nut measuring 3/8-inch across the flats. In the metric system, this is approximately 9.52 millimeters. It is commonly used in various DIY projects and automotive repairs, making it a versatile addition to your toolkit.

FAQs & Answers

  1. How do I measure spanner sizes? Spanner sizes are typically measured across the flats of the bolt or nut it fits, using either imperial or metric units.
  2. What tools do I need for basic automotive repairs? Basic automotive repair tools include wrenches, screwdrivers, pliers, and a variety of spanners including sizes like 3/8.
  3. Can a 3/8 spanner be used for other sizes? A 3/8 spanner is specifically designed for 3/8-inch fasteners and will not fit larger or smaller sizes properly.
  4. What is the difference between a spanner and a wrench? The terms 'spanner' and 'wrench' can be similar, but 'spanner' typically refers to tools with a fixed size, while 'wrench' may imply adjustable tools.

Watch More

If you're interested in expanding your toolkit, check out our guides on other essential hand tools and their uses for DIY and automotive tasks.

  1. Understanding 3/8 Inch Bolts: Specifications and Uses Learn what a 3/8 bolt is and its significance in various projects, from construction to machinery.
  2. What Size is a 3/8 Lag Bolt? Understanding Dimensions and Uses Learn about 3/8 lag bolt dimensions and their applications in construction and hardware.
  3. Understanding Bolt Sizes: Differences Between 3mm, 8mm, and 10mm Learn the key differences between 3mm, 8mm, and 10mm sizes for screws and bolts to select the right one for your project.