Hex head screws are one of the most popular types of screws. They are known for their strength and durability. They are also easy to find and purchase. Hex head screws are also available in a variety of sizes, which makes them perfect for many different applications. One type of hex head screw that is becoming increasingly popular is the vented RCBAS. This type of screw has a hollow core, which allows it to be used in a variety of applications where a traditional hex head screw would not be suitable.