Screws are sold in 1-1/2”, 2” and 3” lengths, all with a ¼” hex head. Concrete is a messy business, and no matter how clean things are kept screws always manage to get concrete stuck in the head. That’s why Hex Head Screws are the best. Any concrete that gets on a hex head is easily knocked off, completely exposing the hex again, which means the screws can be used multiple times over! Screws are sold in 1-1/2”, 2” and 3” lengths, all with a ¼” hex head.Our screws are sold in bags of 100.