High-quality Knapp connecting fitting DUO made of solid metal for easily detachable connections, for example on stairs, paneling, handrails and extensions on front doors. Functional principle: for dimensional and expansion compensation with play. The advantages of this tried and tested connector: easy to attach, invisible and immediately resilient, self-tightening and easy to dismantle, also ideal for seamless doubling. Robust and solid hanging connector for a wide range of work with wood, such as renovation, replacement, replacement or renewal. With over 12 years of experience in the field of building and furniture fittings, we have been offering exclusive branded products from well-known manufacturers for do-it-yourselfers, carpenters and industry since 2014. We attach particular impo.