K&M 21770 Steel Thread Adapter for Speaker Stands

The K&M 21770.000.29 is a compact thread adapter designed for AV technicians and production crews who need to bridge incompatible thread standards between speaker stands, mounts, and hardware. The adapter accepts a 1/4" female thread internally and presents a 3/8" male thread externally, making it a practical solution when mixing equipment from different manufacturers or accommodating accessories with non-matching thread specs.

Built from zinc-plated steel, this adapter is suited for portable speaker stand applications where durability and reliable thread engagement matter. The zinc-plated finish provides resistance to corrosion, keeping the adapter functional across repeated setups in touring and live production environments. Its compact form adds minimal profile to the overall stand assembly while solving a real-world compatibility problem without requiring additional hardware or workarounds.

For integrators and production teams standardizing on K&M stands or managing mixed fleets of portable speaker hardware, having this adapter on hand eliminates field improvisation and speeds up deployment. It is a straightforward, purpose-built component that addresses the thread mismatch issue cleanly and reliably.