Round sleeves (Rundmuffen) feature a continuous metric internal thread along the full length. They can be easily screwed on by hand to an existing metric thread, with no additional tools required. Key benefits - Simple, tool-free installation: hand-tightened onto standard metric threads for fast assembly. - Versatile for extension and connection: ideal for extending and joining threaded rods, pins, and bolts; can also function as spacers. - Fully threaded connectors: connectors are fully internally threaded, used to join two threaded parts and also suitable as spacers or separators. - Durable, corrosion resistant: manufactured from high quality stainless steel A2, providing excellent corrosion protection and weather resistance for indoor, outdoor and damp environments. Compatibility and performance - Designed for standard metric threaded components; suitable for a wide range of assemblies where a continuous internal thread is required. - Suitable for use in outdoor and damp locations due to stainless steel A2 corrosion resistance. Use scenarios - Extending a threaded rod or bolt in a machine frame or construction project to reach a mounting point. - Acting as a precise spacer to set gaps between components in an assembly. - Outdoor railing, fence, or garden structure assembly where exposure to the elements or moisture is a consideration.