Here are some advanced details about hex nuts:

• Types

  There are three types of hex nuts: type 1, type 2, and type 3. Type 1 is the most common and is usually what people refer to when they say "hex nut". Type 1 nuts are chamfered on one side, type 2 nuts are chamfered on both sides, and type 3 nuts are thinner. 

• Uses

  Hex nuts are used to fasten parts together by threading them onto a bolt. They are used in many applications, such as building structures, assembling furniture, and securing automotive parts and machinery. 

• Benefits

  Hex nuts are easy to turn because of their six parallel sides. A person can turn the fastener one-sixth of the way to reach the next parallel. 

• Other types of hex nuts

  Some types of hex nuts include hex jam nuts, heavy hex nuts, and lock nuts. 

• Hex weld nuts

  Hex weld nuts are used to weld the nut onto a host material. They have small three leg projections that help weld the nut into the material.