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J-bolts, also known as AJ bolts, are versatile and can be made from different metals and subjected to various treatments. They are commonly used as cast-in anchor bolts and can be purchased in bulk or custom ordered for specific jobs.
The AJ bolt is a J-shaped bolt that can be used in a variety of applications. Many hardware and construction suppliers stock J-bolts, and it is also possible to order custom sizes directly from the manufacturers of bolts and fasteners. These bolts can be made from different metals and subjected to various treatments, depending on how and where they will be used. It can be helpful to keep a few around the house for various projects, for people who do a lot of DIY work.
In a J-bolt, the thread runs along the flat arm of the J. You might think of a J-bolt as half a U-bolt, since that’s essentially what it is. The diameter of the bolt can be varied, as can the type of thread, angle and size of the hook at the base of the bolt. Manufacturers can also accommodate specific requests for larger orders. To attach something to a J-bolt, threaded nuts and washers can be used as needed.
A common use of J-bolts is as cast-in anchor bolts. Anchor bolts are used to secure various objects to concrete and the J-bolts provide great support and stability, with the shape hooking the bolt into place so it won’t come loose. When the J-bolts are cast into place, they are driven into the concrete as it sets into the desired position, with the thread sticking out so things can be bolted down. J-bolts can also be driven through holes drilled in metal and wood, with the bolt ring creating a very strong hook.
Steel is a common choice of metal for casting a J-bolt because steel is strong, durable, and resistant to many corrosives. It is also possible to use titanium and other metals for specific tasks, such as fastening very heavy objects. Different treatments can be used to make the bolt resistant to specific corrosives so it can be used in environments where these corrosives are present. A resistance to acids, for example, could be very useful in a chemical manufacturing plant.
These specialty bolts can often be purchased in bulk containers at hardware stores, with people selecting as many as they need from an open tray. They can also be ordered in large batches for construction projects. The price of individual bolts tends to be lower in lots, and ordering in lots is also often the only way to get specialized J-bolts with features tailored to a specific job.
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