Easy to fit, solving the problem of stripped threads quickly. You will need a M12mm drill (0.472"). (a) Your existing hanger, back and front, preferably having removed from your bike & rear derailleur, OR.
Dropout Saver Insert / Rear Mech Hanger Frame Saver Nut. SIlver Allloy
Lagomloot Electric Bike Torque Arm Set, 14mm Iron & Aluminum Dropout Saver for Front or Rear Wheel, Includes Hose Clamp and Hardware
CUBE #10241 Direct Mount Inc Axle Cap - Rear Dropout Gear Mech Hanger CC251
Gear Mech Hanger Derailleur rear dropout fits Boardman Carrera inc. screws
Single Speed Chain Tensioner: Lightweight Aluminum Construction, High Elastic Design, Anti-Slip Wheel, Compact Rear Dropout Adapter, Functional Changing Device Suppor
T700 Carbon Track Bike Frame BSA Bottom Bracket Fixed Gear Frame 120 * 9mm Rear Dropout Racing Frameset(Transparent Red,54cm Gloss)