Elumen8 CLAM258 Railing Base Black Key Clamp (247-BPC). Key clamps are designed to secure and connect 48.3mmØ tubes quickly and easily. The wide range of options available enables users to create a huge variety of configurations including lighting grids studio frames staging and exhibitions stands. The railing base key clamp provides a structural base to support vertical posts for handrails and guardrails. It can also be secured to the ground with suitable fixings providing more stability and features a vertical plate to fix kick boards directly to it. Malleable cast iron construction hot dip galvanised with black powder coated finish Designed to fit 48.3mmØ tubes Simply secured via an Allen key (not included) Please note: Not suitable for use in the construction of scaffolding frameworks Grub screws included