Hillman 1/4 In. x 1-1/4 In. Slotted Hex Washer Tapper Concrete Screw (25-Count)

Designed to fasten objects into concrete, brick and block.

Specially hardened high-low thread actually cuts thread into masonry materials.

A simple 2-step operation, drill then drive.

Tappers may be removed and re-inserted in the same hole.

Use for window installations, interior hand rails, metal door frames, storm shutters, interior lighting fixtures, thresholds, or screened enclosures.

Clamshell packaging.