When it comes to construction projects, there are typically several different options in hardware and supplies that can be considered for the job. Making the correct choice in fasteners for any project based on the types of material, the amount of hold required and the environment the fastener has to work in will be important to a quality job.
There are two common types of fastener options used in construction. This can include in attaching walls to cement flooring for new construction, in adding on to a home or commercial building as well as for renovations. These include the use of J bolts or L bolt, both which are considered to be bent-bar anchors.
J Bolts
As the name implies, J bolts form the shape of a J when they are viewed from the side. The bottom of the J makes a pronounced hook which is ideal for anchoring heavy walls into concrete.
The J bolt can also be used for holding items into place on frames and other types of fabrications. They can be threaded a significant length up the shaft of the bolt but the hook is not threaded.
The L Bolt
Just like the J bolt, L bolts are named because of their shape. Rather than the easily seen hook, the L bolt has a 90-degree angle at the bottom. This creates the shape of a capital L when viewed from the side.
These types of bolts are used to attach plate or other construction materials to concrete or plate to masonry. The L bolt, like the J bolt, is installed into the concrete when it is wet. This allows the concrete to set up around the bolt to form a firm and solid hold.
Hold
When considering the options in either shape of bolt always consider the correct size based on the construction project. In many areas when using the L bolts, there will be a requirement to use a bearing plate when there are specific environmental conditions.
Building codes and construction specifications will determine which size and type of bolts are recommended. For most applications either will work, it is just a matter of ensuring the correct bolt size and strength is used in the construction.
For specialized conditions where exposure to high winds, chemicals, salt water and other environmental issues are a factor, it may be essential to have the bolts finished. This will provide additional corrosion resistance and durability, even in very adverse conditions.
