The Masterlock Garage Door Defender Kit is a comprehensive security solution designed to protect up and over garage doors from forced entry. This professional-grade kit combines a robust 71mm hardened steel padlock with a steel security bar to create a highly effective physical barrier against break-ins. The hidden shackle design of the round padlock provides superior protection against cutting and bolt cropper attacks, whilst the 6-pin cylinder offers enhanced resistance to lock picking attempts. The steel security bar features a protective vinyl cover to prevent corrosion and maintain durability in outdoor conditions, making this kit ideal for long-term external installation. Installation is straightforward with the single ground fitting designed to be mounted directly in front of the garage door. The kit includes expandable security bolts specifically engineered for concrete base applications, ensuring a secure and permanent fixing. High security screws are supplied to prevent tampe