Back to GuidesAnchors & Concrete

Concrete Screws (Tapcon Style): Installation & Load Specifications

Direct fastening into solid concrete and brick without expansion anchors. Deep dive into high-low thread designs, pilot hole depth, and masonry drill selection.

By Screwnet Technical Engineering Team
26 August 2026
7 min read

How Direct Concrete Screws Work

Concrete screws utilize alternating high and low threads with diamond-hard induction-hardened cutting edges. As the screw is turned into a precisely drilled pilot hole, the high threads cut their own deep mating groove into the concrete matrix, delivering high pull-out resistance without radial expansion stresses.