Lewis bolt is a tapered bolt used as a removable foundation bolt. This type of Foundation Bolt is not commonly used for mountaining machines. It is used for lifting huge blocks of stones. An anchor bolt diameter ranges from 3/8 inch to 1 inch or more and the length runs from roughly 6 inches to greater than 3 feet. While sizing requirements vary according to local code, 1/2 inch diameter, embedded at least 7 inches, is usually the minimum.
Anchor bolts are also known as foundation bolts and provided to check the uplift of base plate. The tensile load is transfer by bonding between anchor bolt and concrete. The capacity to resist tension is dependent on their lengths which are available to deform elastically.