The Stage Plus Half Coupler (medium, SP-COU-M-HC-B-CSBN) is a black anodised aluminium clamp for hanging small to medium event fixtures, such as lighting fixtures, speakers, screens and signage, from 48 to 52 mm diameter tube, including standard truss chords and scaffold or pipe bars. It is machined from structural-grade 6082-T6 aluminium and has a safe working load of 500 kg. The slotted base accepts an M12 fixing, so the coupler can be bolted directly to a fixture bracket or combined with an M12 wing nut or M12 eye nut to create custom rigging points. This SKU includes an M12 countersunk bolt (CSB) and wing nut, per the supplier's listing. Stage Plus offers the coupler in anodised black or natural (bare aluminium) finishes; this is the black anodised version, which is less visible against dark truss and stage drapes. Stage Plus publishes a certificate of conformity and a manual for the coupler. Always use a secondary safety cable when rigging overhead.