Hello, I'm an expert in measurements and standards. When it comes to the term "M10," it typically refers to a metric thread size for screws, bolts, and other threaded fasteners. The "M" stands for "metric," and the number following it represents the diameter of the thread in millimeters. So, an M10 thread has a diameter of 10 millimeters.

However, the actual size of the threaded fastener can vary based on the thread pitch, which is the distance between the threads. The pitch is not always specified when the size is mentioned as "M10," so it's important to consider the pitch if you're looking for a precise fit. For example, an M10 thread could have a pitch of 1.0mm, 1.5mm, or 2.0mm, among others, and each would have a slightly different overall size.

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Tap sizeBasic major dia (mm)Basic major dia (inch)M8 x 18mm.3150M10 x 1.510mm.3937M10 x 1.2510mm.3937M12 x 1.7512mm.472424 more rowsread more >>