The Electro Hardware MS1017M01F21D is a 1-1/4" overall length round body circuit board spacer designed to provide precise spacing between circuit boards and chassis or panels. This spacer ensures optimal airflow and component alignment, which is crucial for maintaining the performance and longevity of electronic assemblies. Manufactured from high-quality zinc-plated steel, it offers enhanced durability and resistance to corrosion, making it suitable for various industrial applications. The spacer features a 0.116" inside diameter and a 3/16" outside diameter, accommodating #4 screws, and is unthreaded to facilitate easy installation and secure mounting. Its design allows for consistent and reliable spacing, which is essential for preventing component interference and ensuring proper heat dissipation. By incorporating the MS1017M01F21D spacer into your electronic assemblies, you can achieve improved operational efficiency and extend the service life of your equipment.