Single Scaffolding Coupler Tube:
Strong forge single coupler connects two 48.3mm tubes at right angles.
This fitting is intended for connecting board supports (transoms) or putlogs to scaffolding ledgers, but it is also used in lighting rigs, staging, and guard rails. Single couplers can also be used to secure scaffold toe boards.
This fitting is not intended to be load bearing; instead, use a double coupler if that is what you require.