Everything you need for installation is included. The fittings are stainless steel to protect against corrosion.

Weatherproof: They are designed to withstand any weather condition while keeping performance and functionality. I’ve tried mounting sideways into door frame and also vertically down into the concrete floor - I found the later best suited my garage door, due to its internal design. Stylish: In addition to their practicality, these bolts add a touch of elegance to your garage door. Longevity: Enfield bolts are crafted with high-quality materials. Durable and reliable for years to come. The Defender Master prevents the door from being forced open. It can secure roll-up and up and over garage doors.Enfield garage door bolts are the go-to choice for reliable protection. They offer unbeatable strength and durability. Plus, they look great too!

Versatility: Different sizes and designs to fit any type of garage door. An Enfield bolt will fit your needs. In my case i screwed the bolts onto the framework (skeleton) of the door and drilled up into the lintel and down into the concrete floor, which might have been easier. I gather from your pic that you have a latch operated by a steel wire from the handle. By drilling a hole in the door, a burglar poke or pull this wire and the door will open. it might also be possible to fabricate a tool to hook the wire, poked through the gap at the top of the door. if the galvanised plates over the runners are fixed to the wall, or the timber doorframe, like mine, then you can secure the door by fastening it to the galvanised plates.The body has a corrosion-resistant finish to keep the metal strong and sturdy even after years of snow and rain. The bolts come with all the fittings you need to install them including coach bolts, escutcheons for the keyholes, rivets and receivers. Weather Resistance: Enfield bolts are designed to withstand all kinds of weather. They are great for both residential and commercial garages. Even if they manage to get the crowbar under the base plate, it will take tremendous force and lot of time to get the bolts out of the concrete.