This adapter will snap onto the flat 4 hole amps plate found on the LM-300, LM-803-AMPS, LM-802-AMPS, LoPro, Any Lido mount with a 4 hole amps except the LM-300HD and The L-MAX. The adapter works like a camera tripod connection. The kit comes with a 1/4 X 20 screw used for Icom IC-706, IC-7000, ID-4100, IC-2820 remote heads. It also comes with a 5mm screw for any of the Yaesu FTM-100, FTM-200, FTM-300, FTM-350, FTM-400, FTM-500, FTM-6000 and the FT-891.