Review on UB 20 Bracket Compatible Speakers Lifestyle by Will Porter

These brackets are well made BUT the included screws that fit into the ceiling mount bars were the wrong size! They were 1mm larger and didn't screw into the knee of the mount. Due to their unique threads and countersunks, I couldn't buy replacement parts, so I had to rethread the inside of the elbows to M4 so I could use the screws that came with them. Dissatisfied!