5millimeter

5 millimeter (5 mm) is a unit of length in the metric system. It is equal to five thousandths of a meter, or 0.005 m, and is exactly 1/200 of a meter.

In practical terms, 5 mm is a common size in manufacturing and electronics. It is the nominal diameter for M5 screws and bolts, and 5 mm drill bits are widely used for through holes in metal and wood. Five-millimeter LED packages are a familiar form factor in indicator and display components.

Measurement and tolerances are central to working with 5 mm features. Instruments such as calipers and micrometers can measure to fractions of a millimeter, and manufactured parts with a nominal 5 mm dimension may have tolerances typically in the range of ±0.01 to ±0.05 mm, depending on precision requirements and quality standards.

Conversions and context help situate 5 mm among other units. 5 mm equals 0.19685 inches (since 1 inch is 25.4 mm). It also equals 0.005 meters, and is 0.5 centimeters. As a metric unit, it sits between 1 and 10 millimeters in the sequence of common small-length measurements.

Related topics include the millimeter itself, the metric system, and common 5 mm components such as M5 fasteners and 5 mm LED packages.