Square plug

What is the SCHIEMA square plug?

The square plug, also known as the 4K plug, is a high-quality technical plug that is highly suitable for various industrial and structural applications. At SCHIEMA, you will find a complete range of these reliable plugs, designed to guarantee a strong and secure seal or connection. Thanks to the well-thought-out design and precise dimensions, these plugs connect perfectly to your existing systems and installations.

Wide range of sizes and technical specifications

Our range of square plugs includes a wide selection of dimensions, so there is always a suitable solution for your project. We supply these plugs in sizes ranging from 1/8" up to and including 4", including the 1/8", 1/4", 3/8", 1/2", 3/4", 1", 1.1/4", 1.1/2", 2", 2.1/2", 3" and the large 4" plug. Each size has specific technical dimensions. The smallest 1/8" plug has an f dimension of 11.00 mm and a g dimension of 7.00 mm, while the largest 4" version has an f dimension of 57.00 mm and a g dimension of 55.00 mm.

Intermediate sizes such as the 1/2" plug (f dimension 21.00 mm and g dimension 12.00 mm) and the 2" plug (f dimension 38.00 mm and g dimension 32.00 mm) are also precisely defined to guarantee play-free assembly. This wide spectrum of sizes makes the square plug extremely versatile.

Easily order the right square plug

At SCHIEMA, we attach great importance to quality and precision. Our square plugs are carefully catalogued based on their specific f and g dimensions, so you can quickly select the right version. Whether you are looking for a compact plug for finer systems or a robust plug for heavy applications, you are guaranteed to find the right size with us. View the full overview and order the square plug you need directly for your professional job.