748001 Loctite 221 10ML Bottle

Loctite 221 is a low-strength threadlocker specifically formulated for locking and sealing threaded fasteners that require frequent or easy disassembly. It is particularly effective for Harley-Davidson applications involving small diameter screws, long engagement lengths, or adjustment set screws where high torque could shear the fastener during removal. The anaerobic formula cures between metal surfaces in the absence of air, creating a secure bond that resists vibration and shock. This ensures that delicate components stay in place during operation but can be easily serviced using standard hand tools without damaging the threads or the hardware.