#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
Vintage OCTURA Universal Joint for 3/16 Shaft R/C Model Power Boat Fitting NOS
FLYXM 1/5/10/2x For RC Boat Universal Brass M4/M5/M6 Threaded Water Nipples
1/5/10/20PCS Brass Universal M4/M5/M6 Threaded Water Nipples for RC Model Boat
Aluminum 5th wheel Coupling Hitch for Tamiya 1/14 R/C Toy Semi Truck Trailer
