#224 M5 to 4mm. motor shaft : M5. #225 M1/4" to 4mm. Flexible : 4mm. motor shaft : M6.35 (1/4"). It's for round end cable.
universal joint coupling 4mm to 4mm Stainless steel rc model boat scale 40
universal joint coupling 3.18mm to 4mm Stainless steel rc model boat scale 46
RC Model Metal Cardan Joint Gimbal Couplings Double Universal Joint Screw #1419
Steel Universal Shaft Coupling 3mm 3.175mm 4mm 5mm 6mm Motor Coupler
1pcs FT011 - FT012 Drive Shaft 4x4mm /3x3.18mm Universal joint for RC Boat
FT011 - FT012 Drive Shaft 4x4mm /3x3.18mm Universal joint for RC Boat
