TMB-66 : Length 97mm with M20x1.5 threaded Short Heavy Duty Angle Plate. It can fit as follow items
1. Big Rotating Suspension - RCG-2020S-3M5, RCG-2030S-3M5, RCG-2040S-M5G8, RCG-2050S-2G8
2. Big Non-rotating Suspension - NCG-2020S-3M5, NCG-2030S-3M5, NCG-2040S-M5G8, NCG-2050S-2G8