Four Pack 3.17mm Flange Coupling Connectors For RC Model Motors Rigid Shaft Coupler Accessory DIY Model Builds Precision Shaft Axis Fittings Heavy Duty 45 Steel With Heat Treat And Plating

Four-Pack 3.17mm Flange Couplings for RC Motors
✔️ Inner Dia 3.17mm; Height 12mm; M3 screws; 4 couplings, wrench

These flange shaft couplings are made from 45# steel, heat-treated and electroplated for durability. They are designed to link RC model motors to rigid shafts with precise alignment in tight spaces such as model airplanes, boats, and DIY builds.

✅ Material: 45# steel with heat-treated and electroplated process for sturdiness and insulation
✅ Size: Inner Diameter 3.17mm; Height 12mm; Fixed Hole Screw M3
✅ Package includes: 4Pcs 3.17mm flange shaft couplings, 1Pcs M3 mini hex wrench, 8 x M3 screws
✅ Applications: RC model motor shaft connections and DIY model builds
✅ Color: Silver

💡 What is a flange shaft coupling used for in RC model motors with a 3.17mm bore?

These handy parts help join a motor shaft to a compatible shaft while keeping alignment tight in compact RC setups.

- Connects 3.17mm shafts to RC model motors for reliable power transfer - 45# steel with heat treatment and plating for durability in hobby use - Includes M3 screws and a mini hex wrench for quick assembly - Compact 12mm height fits tight installations in small models ✝️