DEWALT Lok-Bolt AS Acorn Nut Carbon Steel, 1/4" x 5/8" (Box of 100)

The Lokbolt Acorn 1/4 X 5/8 (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.