DEWALT Lok-Bolt AS Round Head Carbon Steel, 3/8" x 3-3/4" (Box of 50)

The Lokbolt RH 3/8 X 3 3/4 (AS) is a medium-duty sleeve anchor designed for general-purpose fastening into concrete, brick, and block. Its expanding sleeve, made from zinc-plated carbon steel, grips the sides of the hole as the nut or screw is tightened, delivering reliable holding power for railings, fixtures, and light structural work.